“Effectiveness of NTGD-Based E-Books on Students’ Analytical Thinking in Algebraic Derivatives Learning”. SCHOOLAR: Social and Literature Study in Education 5, no. 3 (January 28, 2026): 118–123. Accessed June 4, 2026. https://ejournal.unwaha.ac.id/index.php/jurnal_pengabdian/article/view/6898.