Adam, Lenny, Ferdinandus Siki, and Abdul Rahim Arman Dapubeang. 2022. “The Language Attitude of Napan Community - Kefamenanu (Sociolinguistics Study at the Border of NKRI-Timor Leste”. Jubindo: Jurnal Ilmu Pendidikan Bahasa Dan Sastra Indonesia 7 (3), 8-22. https://jurnal.unimor.ac.id/index.php/JBI/article/view/3845.