Djarawula, Elga Farianti, Nugroho Aji Prasetiyo, and Zuni Mitasari. “The Effect of Combination of Cooperative Learning Type STAD With NHT on Problem Solving Ability in Class X Students at High School”. Journal of Biology Learning 4, no. 2 (August 30, 2022): 84–93. Accessed May 11, 2024. https://journal.univetbantara.ac.id/index.php/jbl/article/view/2375.