Muhammad Zul Ikram Safei, Nashrullah, Rahmawati Muin, and Idris Parakkasi, “Effectiveness of QRIS as a Digital Instrument Innovation in Strengthening ZIS Fundraising A Study at the Muhammadiyah Zakat Institution (LAZISMU) of Makassar City ”, al. kharaj. j. islam. econ. bus., vol. 8, no. 2, Jun. 2026.