Marpaung, Cynthia Magdalena, Carolina Pakpahan, and Rina Octavia Simarmata. “The Effectiveness of Using Retelling Story Technique Through Pictures Series Media on Speaking Ability of Students of Grade 10th Mariana Catholic High School Medan”. Action Research Journal Indonesia (ARJI) 7, no. 2 (May 31, 2025): 909 – 929. Accessed May 11, 2026. https://journal.nahnuinisiatif.com/ARJI/article/view/393.