Romzi, M.A. and Lubis, D. 2025. Determinants of the proportion of investment financing in Islamic banking business units in Indonesia. Muqtasid: Jurnal Ekonomi dan Perbankan Syariah. 15, 2 (Jun. 2025), 121–138. DOI:https://doi.org/10.18326/muqtasid.v15i2.121-138.