DERLA, IVY T., Avelino D. Bitang, and Yuanyuan Li. “Big Data Analysis Of Common Grammar Errors Among Efl Learners: A Basis For Improving English Writing Instruction Aligned With Sdg 4 (Quality Education) ”. International Journal of Multidisciplinary Research 2, no. 1 (January 31, 2026): 148–154. Accessed February 4, 2026. https://www.ijmrscience.org/index.php/ijmr/article/view/123.