Suma K, Suriyasmini NM, Pujani NM. The effect of conceptual change text on improving student understanding of electricity concepts and learning motivation. irjeis [Internet]. 2018 Nov. 6 [cited 2024 Jul. 16];4(6):33-4. Available from: https://sloap.org/journals/index.php/irjeis/article/view/1112