@BOOK {ORKWOR:1998b, title = {Food yams: advances in research}, author = {Orkwor, G. C. and Asiedu, R. and Ekanayake, I. J. }, year = {1998}, publisher = {International Institute of Tropical Agriculture (IITA); NRCRI}, address = {Ibadan; Umudike, Nigeria}, isbn = {978 131 100 2}, note = {RTB; Root and Tuber; Yam; 249p.; File too large to attached, table of content attached}, }