Panjaitan, Nurul, Mardiatul Rambe, Rahmad Ahadi, and Fauziah Nasution. “Studi Pustaka: Konsep Bilingualisme Dan Pengaruhnya Terhadap Perkembangan Bahasa Anak”. Journal on Education 5, no. 2 (January 21, 2023): 3788-3795. Accessed March 29, 2024. https://jonedu.org/index.php/joe/article/view/1061.