@MANUAL {KOONA:2008, title = {Learning about sustainable oil palm production: a guide for training small-scale farmers in West and Central Africa}, author = {Koona, P. and Bakoume, C. and David, S. and Mva Mva, J. }, year = {2008}, month = {December}, address = {Accra, Ghana}, note = {Oil palm; Tree Crops; Tree Crops Agronomy; Learning Material; 103p.}, }