AMIR, Mohammad Faizal; SARTIKA, Septi Budi. Buku Ajar Metodologi Penelitian Dasar Bidang Pendidikan. Umsida Press, [S. l.], p. 1–153, 2021. DOI: 10.21070/2017/978-979-3401-67-6. Disponível em: https://press.umsida.ac.id/index.php/umsidapress/article/view/978-979-3401-67-6. Acesso em: 21 jun. 2025.