Haris H, Rani AR. GRAMMATICAL AND MECHANICAL ERRORS IN STUDENTS’ ENGLISH WRITING AT UNIVERSITAS PAHLAWAN TUANKU TAMBUSAI. TOFEDU [Internet]. 2025 Aug. 20 [cited 2025 Aug. 27];4(7):2983-9. Available from: https://journal.tofedu.or.id/index.php/journal/article/view/950