Customer care and customer relationship maintenance at Gamuda Land Celadon City real estate project in Vietnam. Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 12, n. 14, p. 4905–4915, 2021. DOI: 10.17762/turcomat.v12i14.11457. Disponível em: https://turcomat.org/index.php/turkbilmat/article/view/11457. Acesso em: 29 may. 2026.