Manurung, Lastri Wahyuni. “The Effect of Roundtable and Clustering Teaching Techniques and Students’ Personal Traits on Students’ Achievement in Writing Paragraph”. Journal of English Teaching as a Foreign Language 1, no. 2 (December 22, 2015): 32-50. Accessed May 19, 2024. https://ejournal.uhn.ac.id/index.php/jetafl/article/view/312.