Wan Ab Aziz, Wan Ahmad Faisal, et al. “The Level of Readiness of Refrigeration and Air Conditioning Program Students in Facing Online Learning During COVID-19 Pandemic”. Online Journal for TVET Practitioners, vol. 6, no. 2, Sept. 2021, pp. 91-99, https://penerbit.uthm.edu.my/ojs/index.php/oj-tp/article/view/9517.