Abdullah J, Bahtiar B, Suparman S. Effect of Numbered Heads Together Model with a Scientific Approach on Students’ Critical Thinking in Biology. bioedu [Internet]. 31 Oktober 2025 [dikutip 12 Juli 2026];8(2):603-11. Tersedia pada: https://ejournal.xternate.com/index.php/bioedu/article/view/10235