Religious aspects Islam 51 Zakat 8 Dissertations 7 Dissertations, Academic 7 Marriage 5 Marriage (Islamic law) 5 Taxation (Islamic law) 5 Economics 4 Investments 3 Islamic law 3 Polygamy 3 Polygamy (Islamic law) 3 Religious life 3 Attitudes 2 Banks and banking 2 Charities 2 Communication 2 Consumer behavior 2 Consumers 2 Criticism, interpretation, etc 2 Da'wah (Islam) 2 Da`wah (Islam) 2 Early childhood education 2 Family 2 Finance 2 Food 2 Hadith 2 Health 2 Islamic religious education 2