Budianto, Teguh, and Budi Djatmiko. “Business Feasibility and Strategic Development Analysis of a Non-Formal Educational Institution to Enhance Sustainable Competitive Advantage: A Case Study of Deft Ruang Belajar”. Majapahit Journal of Islamic Finance and Management, vol. 6, no. 2, Aug. 2026, pp. 4497–4514, doi:10.31538/mjifm.v6i2.1183.