Handika Putra, Roni, Asrial Asrial, and Jefri Marzal. “Pengembangan Rencana Pelaksanaan Pembelajaran Model Problem Based Learning Daring Untuk Meningkatkan Motivasi Belajar Siswa Materi Perubahan Lingkungan: (Development of Online Problem Based Learning Implementation Plans to Increase Student Motivation on Environmental Change Materials)”. BIODIK 7, no. 01 (March 16, 2021): 84-94. Accessed November 24, 2024. https://online-journal.unja.ac.id/biodik/article/view/11775.