PHINYO, K.; DUMRONGCHAI, P. Improvement of Local Geoid Model in Thailand Using Least Square Collocation for Topographic Height Determination. Science and Engineering Connect, Bangkok, Thailand, v. 44, n. 3, p. 469–484, 2021. Disponível em: https://ph04.tci-thaijo.org/index.php/SEC/article/view/10443. Acesso em: 11 aug. 2025.