Fitriani, Vivi, and Novita Sari. “VALIDITY PRACTICAL GUIDE OF MATERIALS BIOTECHNOLOGY IN CLASS XII SMA MA”. Jurnal Pelita Pendidikan 8, no. 1 (May 1, 2020). Accessed February 20, 2026. https://jurnal.unimed.ac.id/2012/index.php/pelita/article/view/15643.