Songa, A., Rajagukguk, W. and Tewu, D. (2026) “An Analysis of Operational Risk Management in the Appointment Process of School Principals at Foundation X Based on ISO 31000:2018”, Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE), 9(1), pp. 8036-8046. doi: 10.31538/iijse.v9i1.9011.