WAHYUNINGTYAS, Arini Tri; MINARTI, Ipah Budi; BUDIASTUTI. 159. Peningkatan Motivasi dan Hasil Belajar Peserta Didik Kelas VIII melalui Model Problem Based Learning pada Materi Cahaya dan Alat Optik. Prosiding Seminar Nasional Pendidikan Profesi Guru, [S. l.], v. 1, n. 1, p. 1450–1457, 2023. Disponível em: https://conference.upgris.ac.id/index.php/psnppg/article/view/4120. Acesso em: 5 dec. 2025.