Salakhov, R.X., R.F. Hamidullin, D.U. Bodykov, B. M. Dabynov, and S.A. Galymzhanov. “Investigation of the Stability of Natural Water-Oil Emulsions Formed During the Extraction of High-Viscosity Petroleum of the Republic of Kazakhstan”. Eurasian Chemico-Technological Journal 21, no. 1 (February 20, 2019): 95-100. Accessed August 25, 2019. http://ect-journal.kz/index.php/ectj/article/view/797.