Lailika, Salma Novia. “Student Perception on the Use of YouTube Videos As Learning Material for Speaking Activities: A Case Study of Teaching Speaking at Vocational Schools”. Retain: Journal of Research in English Language Teaching 11, no. 03 (October 20, 2023): 55–60. Accessed October 2, 2026. https://ejournal.unesa.ac.id/index.php/retain/article/view/56861.