“PURPOSE OF DRILLING MIXTURE IN THE PROCESS OF DRILLING COUPLING AND STUDY OF ITS OBTAINING FROM LOCAL RAW MATERIALS”, ijai, vol. 4, no. 04, pp. 51–54, Jun. 2024, Accessed: Mar. 29, 2026. [Online]. Available: https://www.academicpublishers.org/journals/index.php/ijai/article/view/827