Nien, B. A., Anh, T. T., Dung, P. T., Hieu, T. V., Ly, V. H., Mai, N. T. and Son, T. T. (2015) “Overview of precious stones, half precious tones, fine arting stones, ashlar facing stones and potentiality of them in the Tay Nguyen zone”, Vietnam Journal of Earth Sciences, 37(1), pp. 16–27. doi: 10.15625/0866-7187/37/1/6549.