Wahyuni, Hanna Irma, Barli Bram, and Rose A. Upor. “Schwa or Unstressed Vowel Sound in English Vocabulary Items from Surah Al-Baqarah of the Holy Quran”. Journal of Languages and Language Teaching 12, no. 4 (October 17, 2024): 1625–1640. Accessed September 28, 2025. https://e-journal3.undikma.ac.id/index.php/jollt/article/view/11692.