ชี้ทางดี โ. The Guidelines for Development of Elderly Schools Performance in Lopburi Province. Pathumthani University Academic Journal, [S. l.], v. 11, n. 2, p. 324–335, 2019. Disponível em: https://so05.tci-thaijo.org/index.php/ptujournal/article/view/218894. Acesso em: 3 may. 2024.