Missions Islam 86 Da'wah (Islam) 57 Dissertations 30 Dissertations, Academic 30 Da`wah (Islam) 18 Muslim converts 10 Religious aspects 8 History 6 Methodology 6 Religious life 5 Daʻwah (Islam) 4 Indigenous peoples 4 Societies, etc 4 Christianity 3 Social conditions 3 Apostasy 2 Batak (Indonesian people) 2 College students 2 Drama 2 Islamic religious education 2 Kufr (Islam) 2 Mosques 2 Relations 2 Social aspects 2 Social life and customs 2 Activity programs 1 Allegorical interpretations 1 Apologetic works 1 Asia, Southeastern 1