Sanjaya, I.D.M.A.W. “Improving The Vocabulary Mastery Through Numbered Heads Together Technique of The Seventh Grade Students of SMP N 5 Baturiti In Academic Years 2015/2016”. Journal of Education Action Research 1, no. 1 (May 19, 2017): 1–9. Accessed May 7, 2024. https://ejournal.undiksha.ac.id/index.php/JEAR/article/view/10117.