Politics and government 29 History 28 Islam 21 Biography 14 Leadership 14 Management 14 English language 13 Study and teaching 12 Religious aspects 11 Heroes 9 Economic conditions 8 Success 8 Teaching 7 Psychological aspects 6 World War, 1939-1945 6 Armed Forces 5 Army 5 Conduct of life 5 Educational psychology 5 Grammar 5 Terrorism 5 Textbooks for foreign speaker 5 Armies 4 Communism 4 Congresses 4 Foreign relations 4 Malaysia 4 Organizational behavior 4 Personnel management 4 Problems, exercises, etc 4