Hidayat, N. et al. 2026. Circular Economy- Based Business Model With Business Model Canvas For Keris Craftsmen In Sumenep Madura . Eqien - Jurnal Ekonomi dan Bisnis. 15, 01 (Mar. 2026), 91–111. DOI:https://doi.org/10.34308/eqien.v15i01.2314.