Adam, L., F. Siki, and A. R. A. Dapubeang. “The Language Attitude of Napan Community - Kefamenanu (Sociolinguistics Study at the Border of NKRI-Timor Leste”. Jubindo: Jurnal Ilmu Pendidikan Bahasa Dan Sastra Indonesia, Vol. 7, no. 3, Dec. 2022, pp. 8-22, https://jurnal.unimor.ac.id/index.php/JBI/article/view/3845.