Kieu, Chung, Ha Phan, and Son Le. “A Case Study on Optimizing the Geotechnical Site Investigation Using Kriging Method”. Science and Technology Development Journal 17, no. 3 (September 30, 2014): 54-61. Accessed November 23, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1474.