1. Acquaah G (2009) Principles of plant genetics and breeding. Wiley, Hoboken
2. Adon B, Baudouin L, Durand-Gasselin T, Kouamé B (1998) Utilisation de matériel non amélioré pour la sélection du palmier à huile: l’origine Angola. Plantations, Recherche, Développement 5(3):201–207
3. Africa Industry News (2016)
https://www.palmoilextractionmachine.com/news/industry_news/86.html
4. Bakoumé C, Ngando Ebongué G, Ajambang W, Ataga CD, Okoye MN, Enaberue LO, Konan JN, Allou D, Diabate S, Konan E, Etta CE (2016) Oil palm breeding and seed production in Africa. Proceedings of the international seminar on oil palm breeding and seed production and field visits, Kisaran, Indonesia, 29–30 September 2016
5. Bangarwa KS (2017) Recurrent selection-definition and types: agriculture. Biotech Articles.
https://www.biotecharticles.com/Agriculture-Article/Recurrent-Selection-Definition-and-Types-4144.html
. Accessed July 2018