1. Chemical evaluationof cocoa by products;Abiola;Journal of Tropical Agriculture,1991
2. Natural antioxidants as stabilizers of frying oils;Aladedunye;European Journal of Lipid Science and Technology,2014
3. Antioxidative effects of extracts of cocoa shell, Roselle seeds and a combination of both extracts on the susceptibility of cooked beef to lipid oxidation;Amim;Journal of Food Technology,2006
4. Official methods of analysi;AOAC,2007
5. Official methods and recommended practices of the American Oil Chemists' Society;AOCS,1998