Huang, K.H., T.M. Yang, and C.C. Cheng. “Engineering to See and Move: Teaching Computer Programming With Flowcharts Vs. LEGO Robots”. International Journal of Emerging Technologies in Learning (iJET) 8, no. 4 (July 25, 2013): pp. 23–26. Accessed January 28, 2022. https://online-journals.org/index.php/i-jet/article/view/2943.