Ridwan, Muhammad. “Teaching BIPA (Bahasa Indonesia Untuk Penutur Asing) for Sudanese; Lesson Learned in Bridging Indonesia and Sudan”. Nady Al-Adab : Jurnal Bahasa Arab 13, no. 1 (February 1, 2016): 73-82. Accessed April 27, 2024. https://journal.unhas.ac.id/index.php/naa/article/view/3840.