Ayu, Renada, Supiah Supiah, Zulfikri Rasuan, and Atik Rahmaniyar. “Using Group Investigation (GI) Strategy to Improve Students’ Writing Skill”. EEdJ: English Education Journal 2, no. 1 (April 30, 2022): 43-52. Accessed April 24, 2025. http://lp2msasbabel.ac.id/jurnal/index.php/EEdJ/article/view/2523.