Orun, Putri Anugraheli Ramba. “The Impact of Singing on Second Language Acquisition in Indonesian ESL Learners”. Pulchra Lingua: A Journal of Language Study, Literature & Linguistics 2, no. 2 (November 30, 2023): 137–147. Accessed August 3, 2025. https://ejournal.kyadiren.or.id/index.php/pulchra/article/view/30.