Panoyo, P., Riyanto, Y., Handayaningrum, W., Tunik Muharlisiani, L. y Noerhartati, E. (2019) «The Character Education Strengthening Management: Multiple-Case Study in Senior High School», Opción, 350, pp. 764-788. Disponible en: http://www.produccioncientifica.luz.edu.ve/index.php/opcion/article/view/31926 (Accedido: 3agosto2025).