FORMULATING RESEARCH PROBLEMS AND DEVELOPING HYPOTHESES IN QUANTITATIVE DA’WAH STUDIES: A SYSTEMATIC-CONTEXTUAL INTEGRATION FOR ENHANCED DA’WAH MESSAGE IMPACT. Indonesian Journal of Islamic Communication, [S. l.], v. 8, n. 1, p. 43–70, 2025. DOI: 10.35719/ijic.v8i1.2359. Disponível em: https://ijic.jurnalpascauinkhas.com/index.php/IJIC/article/view/2359. Acesso em: 12 mar. 2026.