Hardianti, T., and L. Sitinjak. “PROFIL LEVEL KOGNITIF SISWA PADA MATERI OPTIK DI KELAS XII MAS TAHFIZHIL QUR’AN YAYASAN ISLAMIC CENTER SUMATERA UTARA”. BIOCHEPHY: Journal of Science Education, vol. 4, no. 1, June 2024, pp. 407-12, doi:10.52562/biochephy.v4i1.1181.