parinduri afrahul fadhillah, Tengku Syarfina. Acoustic Analysis of English Monophthong Vowels Produced by Junior High School Students Using Praat. Journal of Linguistics and Literary Research [Internet]. 2026 Sep. 25 [cited 2026 Oct. 22];7(3):378-87. Available from: https://talenta.usu.ac.id/lingpoet/article/view/25545