Alfin, Jauharoti, and Ratna Pangastuti. “Perkembangan Bahasa Pada Anak Speechdelay”. JECED : Journal of Early Childhood Education and Development 2, no. 1 (June 15, 2020): 76-86. Accessed April 11, 2021. http://jurnalftk.uinsby.ac.id/index.php/JCED/article/view/572.