- In “Public Interest in using QRIS in Purchasing Halal Products” (Proceedings Book The International Conference On Islamic Economics, Islamic Finance, & Islamic Law (ICIEIFIL), 2023) Yandha Yonita Oktya Maharani and Muzakar Isa (Universitas Muhammadiyah Surakarta, Indonesia), using questionnaire data from surveying 130 people, “determine the effects of perceived ease of use, perceived benefits, and safety perception on the intention to use QRIS in purchasing halal food” in Indonesia.