Haris, Hannisa, and Afriza Rahma Rani. 2025. “GRAMMATICAL AND MECHANICAL ERRORS IN STUDENTS’ ENGLISH WRITING AT UNIVERSITAS PAHLAWAN TUANKU TAMBUSAI”. TOFEDU: The Future of Education Journal 4 (7):2983-89. https://doi.org/10.61445/tofedu.v4i7.950.