1. 1989 Gas Chromatography and Lipids: A Practical Guide. The Oily Press Ltd. Ayr. Scotland, p 68.
2. FAO 1968 Food Composition Table for Use in Africa. FAO (Food and Agricultural Organisation) Rome, Italy.
3. 1985 La Grande Livre de la Cuisine Camerounaise (1st edn), SOPECAM, Yaounde, Cameroon.