Educational leadership 29 School management and organization 23 Study and teaching (Secondary) 21 Teachers 17 Islam 16 High school principals 12 Attitudes 11 Teacher-principal relationships 11 Environmental aspects 10 Indigenous peoples 10 Study and teaching (Primary) 9 History 8 Psychological aspects 8 Study and teaching 8 Job stress 7 Malay language 7 Social conditions 7 Academic achievement 6 Curriculum planning 6 Malays (Asian people) 6 Religious aspects 6 School principals 6 Case studies 5 Da`wah (Islam) 5 Job satisfaction 5 Management 5 Teacher effectiveness 5 Arabic language 4 Economic conditions 4 Education 4