Shanmugavelu, G., K. Ariffin, M. Vadivelu, Z. Mahayudin, and M. A. R K Sundaram. “Questioning Techniques and Teachers’ Role in the Classroom”. Shanlax International Journal of Education, Vol. 8, no. 4, Sept. 2020, pp. 45-49, doi:10.34293/education.v8i4.3260.