Siregar, Aisyah Oktavia, and Nur Hazizah. “Studi Kasus Keterlambatan Bicara Anak Usia 6 Tahun ”. Indonesian Journal of Islamic Early Childhood Education 5, no. 1 (January 2, 2021): 21–26. Accessed February 13, 2026. https://jurnal.piaud.org/index.php/Ijiece/article/view/160.