PENGARUH PERGAULAN TEMAN SEBAYA TERHADAP PRESTASI BELAJAR MATEMATIKA MAHASISWA STKIP PARIS BARANTAI. CENDEKIA: JURNAL ILMIAH PENDIDIKAN, [S. l.], v. 7, n. 2, p. 284–292, 2019. DOI: 10.33659/cip.v7i2.144. Disponível em: https://ejurnal.stkip-pb.ac.id/index.php/cendekia/article/view/144. Acesso em: 6 aug. 2026.