Nurman, Muhammad, and Yulia Arfanti. “Development of Speaking Materials by Using Discussion Techniques at Muhammadiyah Vocational School 10 Kisaran”. International Journal of Educational Research Excellence (IJERE) 2, no. 2 (September 20, 2023): 303–314. Accessed November 22, 2024. https://ejournal.ipinternasional.com/index.php/ijere/article/view/469.