Thi Chich, La. “TECHNOLOGY OF TREATMENT OF KAOLIN OF CU CHI - HOCHIMINH CITY”. Science and Technology Development Journal 1, no. 9&10 (October 31, 1998): 66-74. Accessed December 23, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/3753.