Tu An, Bui, Nguyen Kien Cuong, Do Quang Khanh, Trinh Huu Tuan, and Le Phuoc Hao. “PRESURE DROP MODELING IN DRILLING HYDRAULICS”. Science and Technology Development Journal 6, no. 11 (November 30, 2003): 98-106. Accessed November 23, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/3383.