Hariyanto, Hariyanto, Soetarno Joyoatmojo, Joko Nurkamto, and Gunarhadi Gunarhadi. “Developing Inquiry-Based Learning Materials to Promote Students’ Academic Achievement”. International Journal of Learning, Teaching and Educational Research 18, no. 1 (January 30, 2019): 50–61. Accessed April 22, 2026. https://ijlter.net/index.php/ijlter/article/view/604.