The Effect of Multiple-Slot Substitution Drill on Students’ Grammar Mastery at the Eighth Grade Students of SMP Islam Al Akbar Malang. English Teaching Journal and Research: Journal of English Education, Literature, And Linguistics, [S. l.], v. 2, n. 2, p. 213–233, 2022. DOI: 10.55148/etjar.v2i2.403. Disponível em: https://jurnal.iaih.ac.id/index.php/ETJaR/article/view/403. Acesso em: 25 nov. 2025.