F. Andini, H. Herlin, and Y. Abi, “Feasibility Analysis (Financial) of Pak Sugi’s Tofu and Tempeh Business in Belitar Muka Village, Sindang Kelingi Subdistrict, Rejang Lebong Regency”, jambd, vol. 5, no. 1, pp. 147-158, Jan. 2026.