Mohd Tahir, Zurainee, Haryani Haron, and Jasber Kaur. “Ubiquitous Learning Environment and Technologies: A Review”. International Journal of Engineering & Technology 7, no. 3.15 (August 13, 2018): 31–35. Accessed May 2, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/17402.