Educational leadership 29 School management and organization 23 Study and teaching (Secondary) 22 Teachers 17 Islam 16 High school principals 12 Attitudes 11 Teacher-principal relationships 11 Environmental aspects 10 History 10 Indigenous peoples 10 Economic conditions 9 Study and teaching (Primary) 9 Psychological aspects 8 Social conditions 8 Study and teaching 8 Case studies 7 Job stress 7 Malay language 7 Malays (Asian people) 7 Academic achievement 6 Curriculum planning 6 Religious aspects 6 School principals 6 Social life and customs 6 Tourism 6 Da`wah (Islam) 5 Job satisfaction 5 Management 5 Teacher effectiveness 5