Herman, Herman, Yanti Kristina Sinaga, and Gracia Elizabeth Simatupang. “An Investigation to the Students’ Difficulties in the Skills of Reading Comprehension at TOEFL Proficiency Subject”. Bulletin of Science Education 4, no. 2 (June 11, 2024): 40–48. Accessed October 28, 2026. https://attractivejournal.com/index.php/bse/article/view/1154.