Anwar, Aghnia Dianah, and Tofan Dwi Hardjanto. 2022. “Consonant Production of an American-English Native Speaker from 3 to 6 Years Old: A Case Study on a Child Named Brielle”. International Journal of English Linguistics, Literature, and Education (IJELLE) 4 (1):38-49. https://journal.univetbantara.ac.id/index.php/ijelle/article/view/2527.