Wahyuni, K. A. S., I. B. N. Mantra, and N. D. Handayani. “THE USE OF PICTURE SERIES TO IMPROVE WRITING SKILL OF EFL LEARNERS”. International Journal of Applied Science and Sustainable Development (IJASSD), vol. 2, no. 2, Sept. 2020, https://e-journal.unmas.ac.id/index.php/IJASSD/article/view/1205.