HOA, Ha Minh. Improvement of the accuracy of the quasigeoid model VIGAC2017. <b>Vietnam Journal of Earth Sciences</b>, <i>[S. l.]</i>, v. 40, n. 1, p. 39–46, 2018. DOI: 10.15625/0866-7187/40/1/10914. Disponível em: http://vjes.vast.vn/jse/article/view/10914. Acesso em: 8 nov. 2025.