TRANGRATTANACHIT, S. Volunteer development model for enhancing moral values and ethical characteristics of the student council of Omnoisophonchanoopathum School. Mahachula Academic Journal, Bangkok, Thailand, v. 9, n. 1, p. 213–225, 2022. Disponível em: https://so04.tci-thaijo.org/index.php/JMA/article/view/254864. Acesso em: 26 apr. 2024.