Manurung, A. M. ., H. Pardede, and C. N. Purba. “The Effect of Using Sustained Silent Reading (SSR) Method to the Students’ Ability in Reading Report Text at the Eleven Grade of SMA Negeri 2 Pematangsiantar”. Journal of English Teaching As a Foreign Language, vol. 6, no. 2, June 2020, pp. 39-65, https://ejournal.uhn.ac.id/index.php/jetafl/article/view/101.