Akintayo I A, Obasa S O, Alegbeleye W O and Bangbose A M 2008: Evaluation of toasted sunflower (Helianthus annus) seed meal in the diets of African catfish (Clarias gariepinus) fingerlings. Volume 20, Article #157. Retrieved , from http://www.lrrd.org/lrrd20/10/akin20157.html