Siregar, Iskandarsyah. “Effective and Efficient Treatment of Regional Language Preservation Strategies in the Nusantara”. Journal of Humanities and Social Sciences Studies 4, no. 2 (April 4, 2022): 16–22. Accessed December 15, 2025. https://al-kindipublishers.org/index.php/jhsss/article/view/3205.