Purba R. An Investigation of Sociocultural Factors That Cause Language Anxiety in Speaking English for the Second Year Students of English Department of Teachers Training Faculty HKBPNommensen University Pematangsiantar. JETAFL [Internet]. 2015Jun.30 [cited 2024May19];1(1):13-2. Available from: https://ejournal.uhn.ac.id/index.php/jetafl/article/view/150