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Margrettha Is Sirait, Yevana Arthika Hutagaol, Putra Pranata Simanjuntak, Anita Sitanggang. A Contrastive Analysis Of Vowel In Indonesian and English. PIJAR [Internet]. 2023 Aug. 30 [cited 2026 Apr. 27];1(3):400-6. Available from: https://putrapublisher.org/index.php/pijar/article/view/392