Islam 125 History 40 Religious aspects 35 Koran 30 Criticism, interpretation, etc 24 Customs and practices 24 Religious life 20 Doctrines 18 Muslim women 16 Hadith 13 Women in Islam 13 Early works to 1800 12 Indonesia 12 Biography 10 Muslims 9 Women 9 Conduct of life 8 History and criticism 8 Muhammad, Prophet, d. 632 8 Islamic law 7 Politics and government 7 Authorship 6 Da'wah (Islam) 6 Dianetics 6 Fiction 6 Islam and science 6 Islamic ethics 6 Malay fiction 6 Medicine 6 Methodology 6