CKHvTĐ, Tạp chí. “Vĩnh biệt Giáo Sư Nguyễn Văn Chiển”. <i>Vietnam Journal of Earth Sciences</i> 31, no. 2 (April 18, 2009): 97–98. Accessed November 9, 2025. http://vjes.vast.vn/jse/article/view/9674.