Ngo Kea Leng, Juliana Mohd Nor, Norhamimah Rani, Salihah Abdullah. A PRELIMINARY STUDY ON ENGLISH GRAMMAR PROFICIENCY KNOWLEDGE OF DIPLOMA STUDENTS. IJHPL [Internet]. 2024 Jul. 17 [cited 2025 Jun. 5];4(15). Available from: https://gaexcellence.com/ijhpl/article/view/544