Rahmat Ilahi, Melya Husna, Maria Para Siska, M. Imamuddin and Rika Widianita (2025) “Mathematics in Economics: Consumption and Saving Functions from the Perspective of the Islamic Green Economy”, ICIEFS Proceeding, 3(1), pp. 109–117. doi: 10.30983/iciefs.v3i1.900.