Setiawan, Akbar Pandu, and Sinar Perdana Putra. “Profile of Language Problems in Early Children at The Khalimul Khasan Foundation”. Journal of Speech Language and Communication Research 2, no. 1 (June 9, 2025): 15–21. Accessed February 11, 2026. https://jslcr.com/index.php/jslcr/article/view/11.