1. Abbott, P.C., T.J. Benjamin, G.R. Burniske, M.M. Croft, M. Fenton, C.R. Kelly, M. Lundy, F. Rodriguez Camayo and M.D. Wilcox (2018) An Analysis of the Supply Chain of cacao in Colombia. United States Agency for International Development (USAID). Cali, p. 208.
2. Adjaloo, M.K. and W. Oduro (2013) Insect assemblage and the pollination system of cocoa (Theobroma cacao L ). J. Appl. Biosci. 62: 4582–4594.
3. Agudelo, C.G.A., C.G.E. Palencia, S.E.Y. Antolinez and D.E.Y. Báez (2017) Nuevas variedades de cacao TCS (Theobroma Corpoica La Suiza) 13 y 19. Corporación Colombiana de Investigación Agropecuaria. Bucaramanga, p. 20.
4. Ahnert, D. and A.B. Eskes (2018) Developments in cacao breeding programmes in Africa and the Americas. In: Umaharan, P. (ed.) Achieving sustainable cultivation of cocoa, Burleigh Dodds Science Publishing, Cambridge, pp. 1–40.
5. Allen, J.B. (1988) Geographical variation and population biology in wild Theobroma cacao (doctoral dissertation). The University of Edinburgh. Edinburgh, p. 196.