Lutfi Nurhayati, Elva Elfiani Salsa, and Ichsan Fauzi Rachman. “THE EFFECT OF BILINGUALISM ON CHILDREN’S INTELLIGENCE LEVEL”. JOURNAL OF HUMANITIES AND SOCIAL STUDIES, vol. 2, no. 02, May 2024, pp. 483-9, https://humasjournal.my.id/index.php/HJ/article/view/291.