1. Abdul Rabu, S. N. & Hussin, H. (2018). QR Code Utilization in a Large Classroom: Higher Education Students’ Initial Perceptions. Education and Information Technologies, 23(93), 1-26.
2. Al-Bahrani, A. & D. Patel. (2015). Incorporating Twitter, Instagram, and Facebook in Economics Classrooms. The Journal of Economic Education, 46(1),56-67.
3. Alsaaty, Falih & Carter, Ella & Abrahams, David & Alshameri, Faleh. (2016). Traditional Versus Online Learning in Institutions of Higher Education: Minority Business Students’ Perceptions. Business and Management Research. 5. 10.5430/bmr.v5n2p31.
4. Baig, M. A. (2011). A Critical Study Of Effectiveness Of Online Learning On Students Achievement. I-managers Journal of Educational Technology, 7(4), 28-34. doi:10.26634/jet.7.4.1391.
5. Claude, Mueller & Stahl, Michael & Alder, Mark & Müller, Maximilian. (2018). Learning Effectiveness and Students’ Perceptions in A Flexible Learning Course. European Journal of Open, Distance and E-Learning. 21. 44-52. 10.2478/eurodl-2018-0006.
6. Garza, R., Alejandro, E. A., Blythe, T., & Fite, K. (2014). Caring for Students: What Teachers Have to Say. ISRN Education, 2014, 1–7. https://doi.org/10.1155/2014/425856.
7. Ituma, A. (2011). An evaluation of students' perceptions and engagement with e-learning components in a campus based university. Active Learn. High. Educ. 12, 57–68. doi: 10.1177/146978741038772.
8. Kemp, Nenagh & Grieve, Rachel. (2014). Face-to-face or face-to-screen? Undergraduates' opinions and test performance in classroom vs. Online learning. Frontiers in psychology. 5. 1278. 10.3389/fpsyg.2014.01278.
9. Mahat, A. B., Kasmin@Bajuri, N. K. B., Khalid, A. K. B., Semil@Ismail, G. B., Othman, Z. S. B., Ismail, N. B., & Ahmad, N. I. S. B. (2018, June). Comparison between traditional and computer interactive game in learning integration technique. In AIP Conference Proceedings (Vol. 1974, No. 1, p. 020093). AIP Publishing LLC.
10. Mangan, D., Gramano, E., & Kullmann, M. (2020). An unprecedented social solidarity stress test. European Labour Law Journal, 203195252093458. https://doi.org/10.1177/2031952520934585.
11. M. Samir Abou El-Seoud, Islam A.T.F. Taj-Eddin, Naglaa Seddiek, Mahmoud M. El-Khouly, Ann Nosseir (2014) E-Learning and Students' Motivation: A Research Study on the Effect of ELearning on Higher Education. International Journal of Emerging Technologies in Learning (iJET), Vol 9, No 4.
12. Shafie, B. H. M. (2020). Pelaksanaan PdPc Dalam Talian (OLL) Semasa Perintah Kawalan Pergerakan (PKP) Fasa 1 Dan 2 Covid-19. Jurnal Dunia Pendidikan, 2(2), 213-221.
13. Tamargo, F. A. (2010). Virtual Instruments and Tools. Retrieved 10 1, 2010, from VCSSE: www.vccsse.ssai.valahia.ro/.../VccSSe%20Dissemination%20Volume%20-%20Article%203.pdf.