Kamtini, Kamtini, Aman Simaremare, Salsabila Hasiana Tanjung, and Zuwati Hasim. 2025. “Problem-Solving and Educational Management Strategies Among Preschool Principals in Early Childhood Settings”. JPPM (Jurnal Pendidikan Dan Pemberdayaan Masyarakat) 12 (1):52-63. https://journal.uny.ac.id/index.php/jppm/article/view/85288.