Prafnesia, Novia Laudiyah, Irdam Idrus, and Dewi Jumiarni. “Design of Instructional Materials With the Cooperative Learning Model Numbered Heads Together (NHT) for Junior High School”. Biological Sciences and Pedagogy Journal 1, no. 1 (November 1, 2025): 16–25. Accessed May 27, 2026. https://ejournal.edukhatulistiwa.com/index.php/biosped/article/view/236.