“FORMANT CHARACTERISTICS OF MALAY VOWELS OF PERLIS, KELANTAN AND TERENGGANU”. Journal of Information and Communication Technology 18, no. 4 (September 26, 2019): 529–544. Accessed November 10, 2025. https://www.educationmalaysia.co.uk/index.php/jict/article/view/jict2019.18.4.6.