LISTIANI, W.; KURNIAWATI, A.; PURNAMASARI, I. O. EFEKTIFITAS TUTOR SEBAYA DALAM PEMBELAJARAN TRIGONOMETRI DI IKIP BUDI UTOMO MALANG. Pi: Mathematics Education Journal, [S. l.], v. 1, n. 2, p. 70–74, 2018. DOI: 10.21067/pmej.v1i2.2328. Disponível em: https://ejournal.unikama.ac.id/index.php/pmej/article/view/2328. Acesso em: 16 jun. 2024.