Idris, Sulbalqiah, et al. “THE CLASSIFICATION OF ACTUAL PRONUNCIATION OF QURANIC ALPHABETS FOR NON-ARAB SPEAKER”. PERINTIS EJournal, vol. 11, no. 1, Sept. 2021, pp. 70-83, https://perintis.org.my/ejournalperintis/index.php/PeJ/article/view/109.