Winanto Poernomo; Windy Eka Saputri; Pandu Adi Cakranegara; Tutur Wicaksono. IMPROVING STUDENTS’ UNDERSTANDING OF BASIC ECONOMIC CONCEPTS AND ENTREPRENEURIAL SPIRIT THROUGH THE BUYING AND SELLING GAME SIMULATION METHOD AT CITRA KASIH SCHOOL. J-ABDI 2025, 5, 1591-1596.