Dinh Viet, Hung, Hue Nguyen Thanh Kim, and Trung -Tien Chu. “Tree Ring δ¹³C of <i>Pines< i> At Acidic Soil Forest in Central Vietnam: A Preliminary Result for Further Stable Isotope Application on Climate Change and Environmental Protection”. <i>Vietnam Journal of Earth Sciences</i> (October 21, 2025). Accessed November 8, 2025. http://vjes.vast.vn/jse/article/view/23656.