Hakam S.H., A. F., Juma N., and Issan S. “ACTIVATING COMMUNICATION BETWEEN SCHOOL PRINCIPALS AND SUPERVISORS IN BASIC EDUCATION IN THE SULTANATE OF OMAN”. International Journal of Engineering Technologies and Management Research, vol. 5, no. 8, Aug. 2018, pp. 54-63, doi:10.29121/ijetmr.v5.i8.2018.280.