Mapgun, Jumli Alam. “A Contrastive Analysis of English and Japanese Past Form of Verb from Syntactic Views”. Cerdika: Jurnal Ilmiah Indonesia 5, no. 10 (October 7, 2025): 2114–2124. Accessed January 31, 2026. https://cerdika.publikasiindonesia.id/index.php/cerdika/article/view/2737.