SHOLEHA, M.; ARDIAN, E.; AMRI, S. SOME DIFFICULTIES FACED BY THE STUDENTS IN LEARNING PRESENT PERFECT TENSE. J-Shelves of Indragiri (JSI), [S. l.], v. 1, n. 2, p. 66–74, 2020. DOI: 10.32520/jsi.v1i2.1054. Disponível em: https://ejournal-fkip.unisi.ac.id/shelves/article/view/1054. Acesso em: 4 jul. 2024.