CAHYONO, Budi; TSANI, Dian; RAHMA, Aulia. PENGEMBANGAN BAHAN AJAR BUKU SAKU MATEMATIKA BERBASIS PENDIDIKAN KARAKTER MATERI TRIGONOMETRI. Phenomenon : Jurnal Pendidikan MIPA, [S. l.], v. 8, n. 2, p. 185–199, 2018. DOI: 10.21580/phen.2018.8.2.2929. Disponível em: https://journal.walisongo.ac.id/index.php/Phenomenon/article/view/2929. Acesso em: 6 jan. 2025.