Marwan, M., A. Madar, and N. Fuad. “An Overview of Mobile Application in Learning for Student of Kolej Poly-Tech Mara (KPTM) by Using Mobile Phone”. Journal of Asian Scientific Research, vol. 3, no. 6, June 2013, pp. 527-3, https://archive.aessweb.com/index.php/5003/article/view/3510.