@BOOK {ALIMI:2000, title = {Partial budget analysis for on-farm research}, author = {Alimi, T. and Manyong, V. }, series = {IITA research guide, No. 65}, year = {2000}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, isbn = {978-131-043-X}, note = {53p.}, }