Mahmood, N., D. Kadir, and H. Birdawod. “The Full Factorial Design Approach to Determine the Attitude of University Lecturers towards E-Learning and Online Teaching Due to the COVID-19 Pandemic”. Cihan University-Erbil Scientific Journal, Vol. 6, no. 1, Feb. 2022, pp. 20-25, doi:10.24086/cuesj.v6n1y2022.pp20-25.