Tri Endar Yogi Setiadi Saputra. “The Effectiveness of Picture Series in Improving Students’ Writing Skill at Mega Buana University”. DEIKTIS: Jurnal Pendidikan, Bahasa dan Sastra 3, no. 2 (June 30, 2023): 111-124. Accessed October 7, 2026. https://dmi-journals.org/deiktis/article/view/474.