Jamallullail, Syed Harun, and Shahrina Md Nordin. “ETHNOLINGUISTICS VITALITY THEORY: THE LAST STANCE FOR A LANGUAGE SURVIVAL”. Sustainable Multilingualism / Darnioji daugiakalbystė 22 (May 29, 2023): 27–55. Accessed April 16, 2025. https://ejournals.vdu.lt/index.php/SM/article/view/3936.