I GUSTI AGUNG VONY PURNAMA. THE PROBLEMS OF STUDENTS IN USING PAST TENSES. SPHOTA: Jurnal Linguistik dan Sastra, [S. l.], v. 6, n. 2, 2014. Disponível em: https://ejournal.arcomteknologi.id/index.php/sphota/article/view/1289. Acesso em: 6 dec. 2025.