1. “Rice Breeding,”;Abifarin,1972
2. “Weed Control in Rice,”;Ahmed,1983
3. A.M. Akhanda 1966. M.Sc. thesis, University of the Philippines at Los Baños, Laguna.
4. I.O. Akobundu S.O. Fagade 1978 “Rice in Africa” I.W. Buddenhagen G.J. Perseley), pp. 181–211. London