“Optimizing Early Childhood Mental Health Through Social–Emotional Stimulation Using Educational Play Equipment (APE)”. HADHANATUNA: Journal of Early Childhood Education 2, no. 1 (February 27, 2025): 142–152. Accessed June 6, 2026. https://jurnal.isimupacitan.ac.id/index.php/hadhanatuna/article/view/199.