Hanh LTM, Hien LTT. NINTH-GRADE STUDENTS’ PERCEPTIONS OF ENGLISH-SPEAKING DIFFICULTIES: A DESCRIPTIVE STUDY AT A SECONDARY SCHOOL IN LAM DONG PROVINCE. The University of Phan Thiet Journal of Science. 2026;4(3):88-104. Accessed October 12, 2026. http://tapchikhoahocupt.vn/index.php/uptjs/article/view/129