Wallin, Jamie, and Boonsri Cheevakumjorn. “Learning English As a Second Language: Earlier Is Better : ”. JEES (Journal of English Educators Society) 5, no. 1 (March 28, 2020): 1–8. Accessed August 21, 2025. https://jees.umsida.ac.id/index.php/jees/article/view/349.