@MANUAL {ISHIKAWA:2013b, title = {Guide pratique sur la culture du niebe pour le Burkina Faso}, author = {Ishikawa, H. and Drabo, I. * and Muranaka, S. and Boukar, O. }, year = {2013}, note = {WAHub; CRP Grain Legumes; Cowpea; Cowpea Agronomy; Learning Material; ISBN: 978-978-8444-15-2; 23p.}, }