Syafii, M. L. “The Use of Picture Series to Improve Eighth Graders’ Writing Recount Texts”. Indonesian EFL Journal: Journal of ELT, Linguistics, and Literature, Vol. 2, no. 2, Dec. 2016, pp. 70-90, https://ejournal.kopertais4.or.id/mataraman/index.php/efi/article/view/2529.