“Effectiveness of NTGD-Based E-Books on Students’ Analytical Thinking in Algebraic Derivatives Learning” (2026) SCHOOLAR: Social and Literature Study in Education, 5(3), pp. 118–123. Available at: https://ejournal.unwaha.ac.id/index.php/jurnal_pengabdian/article/view/6898 (Accessed: 4 June 2026).