Ayub, M., O. Karnalim, M. C. Wijanto, and R. Risal. “Initial Suspicion on Detecting Code Plagiarism and Collusion in Academia: Case Study of Algorithm and Data Structure Courses”. Journal of Information Technology and Computer Science, vol. 6, no. 1, Apr. 2021, pp. 9-17, doi:10.25126/jitecs.202161274.