Mohamad Said, Mohd Nihra Haruzuan, Lokman Mohd Tahir, Mohd Fadzli Ali, Norah Md Noor, Noor Azean Atan, and Zaleha Abdullah. 2014. “Using Activity Theory As Analytical Framework for Evaluating Contextual Online Collaborative Learning”. International Journal of Emerging Technologies in Learning (iJET) 9 (5):pp. 54-59. https://doi.org/10.3991/ijet.v9i5.3972.