NUR HADZIQOH; FATWASAURI, I.; DEWI, P. Penerapan Alat Peraga Trigonometri Sudut Istimewa Bagi Siswa pada SMK Yabri Terpadu Pekanbaru. Abdimas Universal, [S. l.], v. 4, n. 1, p. 40–44, 2022. Disponível em: https://abdimasuniversal.uniba-bpn.ac.id/index.php/abdimasuniversal/article/view/127. Acesso em: 3 jul. 2022.