Islam Religious aspects 1,558 Dissertations, Academic 805 Dissertations 800 Banks and banking 253 Doctrines 166 History 154 Islamic law 134 Da'wah (Islam) 132 Customs and practices 127 Religious life 125 Finance 114 Economics 112 Missions 110 Criticism, interpretation, etc 109 Study and teaching 109 Muslims 105 Islamic religious education 90 Relations 86 Islamic education 84 Zakat 71 Hadith 68 Interpretation and construction 68 Social aspects 59 Economic aspects 56 Charities 54 Christianity 53 Prayer 52 Marriage 51 Insurance 49