Chang-Jun Choi, and Ha-Sung Kong. “A Comparative Analysis of Evacuation Safety on Stairs and Ramp for High School Students”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 13 (July 10, 2021): 5874–5882. Accessed May 3, 2024. https://turcomat.org/index.php/turkbilmat/article/view/9858.