Hai, Nguyen Phuoc, and Trinh Thi Kim Binh. “Application of the GSP Chart and ROC Method to Develop A Grade 8 Natural Science Item Bank from Empirical Data Analysis”. Journal of Social Science and Human Research Studies 2, no. 03 (March 9, 2026): 187–193. Accessed September 28, 2026. https://jsshrs.ep-journals.org/index.php/jsshrs/article/view/120.