Aanyu M, Carpaij C and Widmer M 2012:
Effect of diets with graded levels of inclusion of cotton and sunflower seed cakes on the growth performance and feed utilization of Nile tilapia, Oreochromis niloticus.
Livestock Research for Rural Development. Volume 24, Article #84.
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, from http://www.lrrd.org/lrrd24/5/aany24084.htm