Farhat, M. F., Nasution, M. S. A., & Harahap, M. I. (2026). Analysis of the Implementation of the Principle of Honesty (Shiddiq) in Islamic Business Ethics in Herbal Business (Case Study of Harokah Herbal Shop Medan). Indonesian Journal of Islamic Economics and Finance, 6(1), 839–854. https://doi.org/10.37680/ijief.v6i1.10053