Okpatrioka, O. “Penelitian Dan Pengembangan (Research And Development) Dalam Pendidikan Dan Pengajaran”. IKRA-ITH HUMANIORA : Jurnal Sosial Dan Humaniora, Vol. 9, no. 2, July 2025, pp. 534-56, https://journals.upi-yai.ac.id/index.php/ikraith-humaniora/article/view/4930.