Saundarajan, Kartigeyan, Sharifah Osman, Jeya Amantha Kumar, Mohd Fadzil Daud, Mohd Salleh Abu, and Mohamad Rasidi Pairan. “Learning Algebra Using Augmented Reality: A Preliminary Investigation on the Application of Photomath for Lower Secondary Education”. International Journal of Emerging Technologies in Learning (iJET) 15, no. 16 (August 28, 2020): pp. 123–133. Accessed June 28, 2022. https://online-journals.org/index.php/i-jet/article/view/10540.