Asiksoy, Gulsum, and Serhat Canbolat. 2021. “The Effects of the Gamified Flipped Classroom Method on Petroleum Engineering Students’ Pre-Class Online Behavioural Engagement and Achievement”. International Journal of Engineering Pedagogy (iJEP) 11 (5):pp. 19-36. https://doi.org/10.3991/ijep.v11i5.21957.