Sitanggang, N., B. L. Siahaan, R. R. Turnip, and D. Gultom. “The Effect of Storytelling Technique in Improving Students Speaking Ability at SMAN 1 Sidamanik”. International Journal of Contemporary Studies in Education (IJ-CSE), vol. 2, no. 1, Mar. 2023, doi:10.56855/ijcse.v2i1.239.