Alisia, N. et al. 2025. The Effect of the Application of the Problem Based Learning (PBL) Learning Model on Early Childhood High Order Thinking Skill (HOTS): A Quasi-Experimental Study. JPUD - Jurnal Pendidikan Usia Dini. 19, 2 (Oct. 2025), 295–306. DOI:https://doi.org/10.21009/jpud.v19i2.54673.