Yimyam W, Ketcham M. The Grading Multiple Choice Tests System via Mobile Phone using Image Processing Technique. Int. J. Emerg. Technol. Learn. [Internet]. 2018 Oct. 26 [cited 2024 Apr. 24];13(10):pp. 260-269. Available from: https://online-journals.org/index.php/i-jet/article/view/8341