Widiyarini, Astuti, and Insih Wilujeng. “Pengembangan LKS IPA Berbasis Scientific Approach Untuk Mengoptimalkan Learning Outcome Siswa MTs Kelas VII”. Jurnal Pendidikan Matematika dan Sains 3, no. 2 (December 27, 2015): 169–181. Accessed May 9, 2025. https://journal.uny.ac.id/index.php/jpms/article/view/10949.