1.Abdulai, Abdul Nafeo. 2016. “Impact of Conservation Agriculture Technology on Household Welfare in Zambia.” Agric. Econ., 47 (6): 729–41.

2.Ahmed, Musa H., Hiwot M. Mesfin, Seltene Abady, Wendmagegn Mesfin, and Amare Kebede. 2016. “Adoption of Improved Groundnut Seed and its Impact on Rural ’Households’ Welfare in Eastern Ethiopia.” Edited by Goodness Aye. Cogent Econ. Finance, 4(1).

3.Alamgir Hossain, Shah M. and Bruce R. Crouch. 1992. “Patterns and Determinants of Adoption of Farm Practices: Some Evidence from Bangladesh.” Agric. Sys., 38 (1): 1–15.

4.Alizadeh, Mohammad Reza. 2011. “Effect of Paddy Husked Ratio on Rice Breakage and Whiteness during Milling Process.” Aust. J. Crop Sci., 5(5): 562–65.

5.Atyi, Richard Eba’a, Guillaume Lescuyer, Jonas Ngouhouo Poufoun, and Thérèse Moulendè Fouda. 2013. “Étude de l’importance économique et sociale du secteur forestier et faunique au Cameroun.” Rapport final. Cameroun: CIFOR.

6.Awono, A, R ’Eba’a Atyi, Tita Foundjem, and P Levang. 2016. “Vegetal Non-Timber Forest Products in Cameroon, Contribution to the National Economy.” Int. for Rev., 18(1): 66–77.

7.Ayuk, Elias T., Bahiru Duguma, Steve Franzel, Joseph Kengue, Matthias Mollet, Theophile Tiki-Manga, and Pauline Zenkeng. 1999. “Uses, Management and Economic Potential of Garcinia Kola and Ricinodendron Heudeloth in the Humid Lowlands of Cameroon.” J. Trop. for Sci., 11(4): 746–61.

8.Caspa, R.G., Tchouamo, I.R., Mate Mweru, J.-P. and Amang Mbang, J. 2018. “Marketing Ricinodendron heudelotii Kernels and Gnetum spp. Leaves Around Lobeke National Park, East Cameroon.” Tropicultura, 36(3): 565–77.

9.Djeugap, F.j, L Bernier, D Dostaler, D Khasa, Da Fontem, and D Nwaga. 2013. “Opportunités et contraintes agroforestières de Ricinodendron heudelotii au Cameroun.” Int. J. Biol. Chem. Sci., 7(1): 344.

10.Endamana, D., K.A. Angu, G.N Akwah, G. Shepherd, and B.C. Ntumwel. 2016. “Contribution of Non-Timber Forest Products to Cash and Non-Cash Income of Remote Forest Communities in Central Africa.” Int. for Rev., 18(3): 280–95.

11.Icard-Vernière, C., E. Martorell, V. Vaissayre, S. Dussert, C. Picq, H. Womeni, and C. Mouquet-Rivier. 2020. “Le Safou, Un Atout Nutritionnel Dans La Diète Des Camerounais.” Nutrition Clinique et Métabolisme, 34(1): 33–34.

12.Kamdem, Cyrille Bergaly. 2014. “Impact de la commercialisation collective par les organisations paysannes sur le prix au producteur du cacao au Cameroun.” In 8es Journées de Recherches en Sciences Sociales - 11-12 décembre 2014, 37. Grenoble.

13.Khonje, Makaiko, Julius Manda, Arega D. Alene, and Menale Kassie. 2015. “Analysis of Adoption and Impacts of Improved Maize Varieties in Eastern Zambia.” World Dev., 66: 695–706.

14.Mbosso, Charlie, Ann Degrande, Patrick Tabougue, Steven Franzel, Patrick Van Damme, Zac Tchoundjeu Zac, and Divine Foundjem-Tita. 2013. “No Appropriate Technology so Far for Ricinodendron heudelotii (Baill. Pierre Ex Pax) Processing in Cameroon: Performance of Mechanized Kernel Extraction.” Afr. J. Agric. Res., 8(46): 5741–51.

15.Mbosso, Charlie, Ann Degrande, Grace B. Villamor, Patrick Van Damme, Zac Tchoundjeu, and Sygnola Tsafack. 2015. “Factors Affecting the Adoption of Agricultural Innovation: The Case of a Ricinodendron heudelotii Kernel Extraction Machine in Southern Cameroon.” Agrofor. Syst., 89(5): 799–811.

16.Nde-Atse, Hp. 2009. “Facteurs D’adoption De Varietes Ameliorees De Riz En Côte D’ivoire : Cas De La Region De Korhogo.” Agron. Afr., 19(1).

17.Ndumbe, Louis Njie, Verina Ingram, Martin Tchamba, and Smith Nya. 2019. “From Trees to Money: The Contribution of Njansang (Ricinodendron heudelotii ) Products to Value Chain ’Stakeholders’ Financial Assets in the South West Region of Cameroon.” For Trees Livelihoods, 28(1): 52–67.

18.Nkwatoh, A.F., Labode, P., Ebobenow, L., Nkwatoh, F.W., Ndumbe, N.L. and Ewane, M.E 2011. “Gathering, Processing and Marketing of Ricinodendron Species (Baill) in the Humid Forest Zone of Cameroon.” Agric. Sci. Res. J., 1(9): 213–21.

19.Nkwatoh, A.F. and Yinda, G.S. 2007. “Assessment of Non- Timber Forest Products (NTFPs) of Economic Potentials in the Korup National Park, of South Western Cameroon.” Global J. Agric. Sci., 6(1).

20.Rubin, D. 2006. “Matched Sampling for Causal Effects.” Matched Sampling for Causal Effects, January. https://doi. org/10.1017/CBO9780511810725.

21.Simtowe, Franklin, Menale Kassie, Solomon Asfaw, Bekele A Shiferaw, Emmanuel Monyo, and Moses Siambi. 2012. “Welfare Effects of Agricultural Technology Adoption: The Case of Improved Groundnut Varieties in Rural Malawi.”

22.Suleiman, Muhammad Sabiu, Vivian Oliver Wasonga, Judith Syombua Mbau, Aminu Suleiman, and Yazan Ahmed Elhadi. 2017. “Non-Timber Forest Products and Their Contribution to Households Income around Falgore Game Reserve in Kano, Nigeria.” Ecol. Process, 6(1).

23.Tata, P. and Abdon, A. 2014. “Enquêtes Socio-Économiques Sur Les Filières Mangue Sauvage, Ndjansan et Okok Au Cameroun.” Programmes et Politiques de Gestion Des Ressources Naturelles Axés Sur Les Produits Forestiers Non Ligneux (PFNL) En Afrique de l’Ouest et Du Centre, Projet PFNL-4P. Cameroun: CIFOR/IRAD.