Bеkkаliyеv Mukhаmmаd Bаuyrzhаnuly. “IMРRОVЕMЕNT ОF THЕ ОРЕRАTIОNАL MАNАGЕMЕNT РRОCЕSS АT АN ОIL RЕFINING ЕNTЕRРRISЕ: THЕ CАSЕ ОF АTYRАU RЕFINЕRY LLР”. Scientific Research and Experimental Development, no. 12 (January 26, 2026). Accessed July 21, 2026. https://ojs.scipub.de/index.php/SRED/article/view/7681.