Educational leadership 28 School management and organization 20 Study and teaching (Secondary) 16 Islam 15 High school principals 12 Teachers 12 Teacher-principal relationships 11 Attitudes 10 History 8 Psychological aspects 8 Economic conditions 7 Malays (Asian people) 7 Study and teaching 7 Study and teaching (Primary) 7 Curriculum planning 6 Indigenous peoples 6 Job stress 6 Malay language 6 Religious aspects 6 School principals 6 Social conditions 6 Academic achievement 5 Case studies 5 Job satisfaction 5 Arabic language 4 Da`wah (Islam) 4 Education 4 High school teachers 4 Islamic law 4 Management 4