Putri, Seva Zakiyyah, Syafryadin Syafryadin, and Muhammad Fadhli. “Problems and Strategies of Introvert Students in Speaking English”. Journal of English Education and Teaching 8, no. 1 (March 5, 2024): 156–173. Accessed May 8, 2024. https://ejournal.unib.ac.id/JEET/article/view/29259.