Lai, Chien-Hung, Tsung-Po Lee, Bin-Shyan Jong, and Yen-Teh Hsia. “Using SPRT+ to Reduce Measure Time on Student Learning Efficiency by Pre-Defined Student’s Confidence Indicator”. International Journal of Emerging Technologies in Learning (iJET) 9, no. 3 (May 10, 2014): pp. 55–58. Accessed March 29, 2024. https://online-journals.org/index.php/i-jet/article/view/3317.