Panjaitan, Chatryn Joice Elisabet, and Herbert Sipahutar. “TGT-Based Crossword E-Worksheets: Interest, Activity, and Learning Outcomes in Biology Education”. Biosfer: Jurnal Pendidikan Biologi 19, no. 1 (February 21, 2026): 253–264. Accessed May 19, 2026. https://journal.unj.ac.id/unj/index.php/biosfer/article/view/60767.