HASNIA DWI LESTARI; SYAMSU ALAM; VALENTINO ARIS. Design of an Expenditure Data Management System to Minimize Human Error in Figor Coffee MSME using the Waterfall Method. Online Journal of Management, Innovation, Economics, and Digital Studies, [S. l.], v. 1, n. 1, p. 39–47, 2026. Disponível em: https://onmind.bisdig.feb.unm.ac.id/article/view/639. Acesso em: 27 jul. 2026.