M. A. Haji and P. Ochieng’, “PRINCIPALS’ EFFECTIVE COMMUNICATION PRACTICES AND THEIR INFLUENCE ON KENYA CERTIFICATE OF SECONDARY EDUCATION PERFORMANCE IN PUBLIC SECONDARY SCHOOLS IN MANDERA WEST SUB-COUNTY, MANDERA COUNTY, KENYA”, AJOEI, vol. 5, no. 5, pp. 62 - 72, Jun. 2023.