Nathasya, Rossevine Artha, and Oscar Karnalim. “The Use of Color Gradation on Program Visualization for Learning Programming”. IJNMT (International Journal of New Media Technology) 6, no. 1 (August 30, 2019): 17-23. Accessed November 21, 2024. https://ejournals.umn.ac.id/index.php/IJNMT/article/view/1040.