1. New correlation for estimating the viscosity of under saturated crude oil;Abdul-Majeed;J.Cdn. Pet. Tech. (May/June),1990
2. Simulation of the viscosity of different Nigerian crude oil;Abdulkareem;Leonardo J. Sci.,2006
3. Albert, J., et al., 1987. Process for Producing Degummed Vegetable Oils and Gums of High Phosphatidic Acid Content. US. Patent No. 498158.
4. Method of Rheological Properties on Non-newtonian Materials by Rotational (Brookfield) Viscometer;American Society for Testing and Materials (ASTM D-2196),1918