Nguyen, Van, and Lieu Vo. “Study on the Deep Conductive Geologic Structure by Magnetovariational Method”. VNUHCM Journal of Science and Technology Development 18, no. 3 (August 30, 2015): 10-18. Accessed August 31, 2025. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/814.