Rusmawaty, Desy, Effendi Limbong, Ichi Ahada, M. Indra F. Hafizh, and Achmad. N. Rahmatullah. “Unlocking Phonological Proficiency: Exploring Allophonic Variation Using ELSA Speak App in Early Semester EFL Students at Mulawarman University”. Indonesian Journal of EFL and Linguistics 9, no. 2 (November 1, 2024): 337-348. Accessed July 10, 2025. https://indonesian-efl-journal.org/index.php/ijefll/article/view/828.