PRASTIANTO, H. R. Imperfect Aspect in English and Indonesian Verbs. Nusantara of Research : Jurnal Hasil-hasil Penelitian Universitas Nusantara PGRI Kediri, [S. l.], v. 2, n. 1, 2015. Disponível em: https://ojs.unpkediri.ac.id/index.php/efektor/article/view/80. Acesso em: 22 dec. 2024.