P. M. . Omary, E. X. . Ricky, N. A. . Kasimu, M. M. . Madirisha, K. F. . Kilulya, and E. H. J. . Lugwisha, “Potential of Kaolin Clay on Formulation of Water Based Drilling Mud Reinforced with Biopolymer, Surfactant, and Limestone”, Tanz. J. Sci., vol. 49, no. 1, pp. 218–229, Mar. 2023.