KONTRIBUSI MOTIVASI BELAJAR TERHADAP KOMPETENSI KOGNITIF PESERTA DIDIK PADA MATERI PERUBAHAN DAN PELESTARIAN LINGKUNGAN HIDUP DI SMAN 5 DUMAI. BIOCHEPHY: Journal of Science Education, [S. l.], v. 4, n. 2, p. 987–991, 2024. DOI: 10.52562/biochephy.v4i2.1366. Disponível em: https://staging-journal.moripublishing.com/index.php/biochephy/article/view/1366. Acesso em: 11 jul. 2026.