Usman, R., A. I. Ibrahim, M. R. Palawa, D. F. P. Setiawan, S. S. Hamdani, and D. Syafitri. “Payment System Management to Prevent Fraud in Micro, Small, and Medium Enterprises (MSMEs) at Disa Olshop”. International Journal of Health, Economics, and Social Sciences (IJHESS), Vol. 7, no. 4, Oct. 2025, p. 1637~1641, doi:10.56338/ijhess.v7i4.8191.