Binh, Huynh, and Le Hao. “THE PROPOSAL OF ROCK MASS CLASSIFICATION FOR CONSTRUCTION HYDROELECTRIC POWER PROJECTS IN TAY NGUYEN AREA”. Science and Technology Development Journal 10, no. 10 (October 31, 2007): 69-79. Accessed December 23, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/2836.