DU, N. T.; DANG, T. V. .; LE, L. T. T. . Applying CIPO indicators to examine the implementation of a happy school model in Vietnam. International Journal of Innovative Research and Scientific Studies, [S. l.], v. 8, n. 2, p. 1903–1914, 2025. DOI: 10.53894/ijirss.v8i2.5582. Disponível em: https://ijirss.com/index.php/ijirss/article/view/5582. Acesso em: 16 apr. 2025.