1. Abdellatif, A. M. M., and Vles, R. O. (1970). Proc. Int. Conf. Sci., Technol., Market., Rapeseed, Rapeseed Prod., 1970 pp. 435–449.
2. Effects of Hardened Palm Oil and Protein on the Pathological and Hematological Characteristics of Ducklings Fed Rapeseed Oil
3. “Textbook of Work Physiology,”;Åstrand,1970