Sinurat, R. S., N. D. Syahputri, N. Y. Rambe, N. Rebista, P. M. Hutabalian, and N. Amanda. “Efektivitas Model Pembelajaran Problem Based Learning (PBL) Berbantukan E-LKPD Terhadap Kemampuan Berpikir Kritis Peserta Didik Pada Materi Klasifikasi Makhluk Hidup Di Kelas X SMAN 1 Medan: (The Effectiveness of the Problem Based Learning (PBL) Learning Model Assisted by E-LKPD on Students’ Critical Thinking Ability on Classification of Living Creatures Material in Class X of SMAN 1 Medan)”. BIODIK, vol. 11, no. 1, Feb. 2025, pp. 1-10, doi:10.22437/biodik.v11i1.41758.