[1]
B. Sukmaangara, D. Fariliyanto, F. Triramadani, and F. D. Anggia, “Application of the Derivative Concept to Determine the Maximum Profit Point of Nasi Lengko Traders in Cirebon”, J.Math.Instr.Soc.Res.Opin., vol. 5, no. 1, pp. 1147–1156, Apr. 2026.