Sianturi, A. S. R. . and Pradana, S. P. (2025) “Improving student understanding through interactive e-books on environmental education in the biology education study program at pattimura university”, 12 Waiheru, 11(2), pp. 138–145. Available at: https://journal.bdkambon-kemenag.id/index.php/12waiheru/article/view/97 (Accessed: 19 May 2026).