[1]Niên, B. Ấn et al. 2013. Distribution characteristics, the dissemination and quality of the fine arts and decorative rocks in the centre of Vietnam. <i>Vietnam Journal of Earth Sciences</i>. 34, 4 (Mar. 2013), 495–505. DOI:https://doi.org/10.15625/0866-7187/34/4/2809.