HANDAYANI, U. F.; HAKIM, W.; PUTRI, A. O. Analisis Kesalahan Mahasiswa dalam Pembuktian Identitas Trigonometri. Journal Focus Action of Research Mathematic (Factor M), [S. l.], v. 4, n. 2, p. 27–42, 2022. DOI: 10.30762/factor_m.v4i2.4146. Disponível em: https://jurnalfaktarbiyah.iainkediri.ac.id/index.php/factorm/article/view/361. Acesso em: 17 may. 2024.