Ellenna Ayu Maywulandari et al. 2026. DEVELOPMENT OF THE HOTS-BASED “PROK-PROK” GAME APPLICAION TO IMPROVE CRITICAL THINKING SKILLS AND SOCIAL STUDIES LEARNING ACHIEVEMENT OF FIFTH-GRADE STUDENTS AT SDN SUKOLILO 01. International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET). 5, 9 (Aug. 2026), 5738–5746.