Yunita Murdiyaningrum, and Novrian Satria Perdana. “Operational Cost Requirements Analysis in Early Childhood Education”. Jurnal Pendidikan Usia Dini 14, no. 1 (April 30, 2020): 65 - 77. Accessed April 20, 2024. https://journal.unj.ac.id/unj/index.php/jpud/article/view/14437.