Dissertations 54 Dissertations, Academic 54 Educational leadership 33 Teacher-principal relationships 20 Psychological aspects 18 School management and organization 17 School principals 14 High school principals 13 Teachers 12 Study and teaching (Secondary) 9 Curricula 8 Social aspects 8 Job satisfaction 7 Management 7 Social conditions 7 Study and teaching 7 Education 6 Entrepreneurship 6 Research 6 Case studies 5 History 5 Politics and government 5 Arabic language 4 Decision making 4 Economic conditions 4 Education and state 4 Evaluation 4 High schools 4 Islam 4 Islamic education 4