G. T. . Chala, S. A. . Sulaiman, S. A. . Sulaiman, A. . Japper-Jaafar, and W. A. K. . Wan Abdullah, “Investigation of convective heat transfer coefficient and initial temperature of waxy crude oil on the formation of voids”, Int. J. Automot. Mech. Eng., vol. 13, no. 3, pp. 3754–3762, Dec. 2022.