Iqbal, Muh, and Lukis Alam. “Classroom Cleaning Duty to Cultivate Social Spirit and Responsibility at MTs Negeri 1 Yogyakarta”. Journal of Indonesian Progressive Education 1, no. 2 (November 23, 2024): 61–70. Accessed February 7, 2026. https://icipi.org/index.php/JIPE/article/view/15.