Tien, Hung Nguyen -, Phuong Nguyen-Hong, Minh Nguyen-Le, Wen Kuo-Liang, and Nguyen Tran-An. 2017. “Investigation of Microtremor Motion Variation by Nakamura’S H/V Spectral Ratio Method”. Vietnam Journal of Marine Science and Technology 17 (4B):68-74. https://doi.org/10.15625/1859-3097/17/4B/12994.