Nien, Bui An, Tran Tuan Anh, Pham Thi Dung, Tran Van Hieu, Vu Hoang Ly, Nguyen Thi Mai, and Tran Thanh Son. “Overview of Precious Stones, Half Precious Tones, Fine Arting Stones, Ashlar Facing Stones and Potentiality of Them in the Tay Nguyen Zone”. Science of the Earth 37, no. 1 (July 24, 2015): 16–27. Accessed December 10, 2022.