Mtasiwa, Godfrey Exploring deputy heads of secondary schools' managerial skills in executing duties in Njombe District, Tanzania/ Godfrey Mtasiwa - Dar es Salaam: University of Dar es Salaam, 2020. - xi, 98p.: ill. ; 30cm. Includes: Bibliographical references.Thesis: MEMA Subjects--Topical Terms: School Principals-rating ofEducation, SecondarySchool management and organizationNjombe DistrictTanzania LC Class. No.: THS EAF LB2831.966T34M783