Rustan, Rustan. “Sales Growth Throught Quality Cost in Increasing Profit in Micro, Small and Medium Enterprises (MSMEs)”. International Journal of Economics Development Research (IJEDR) 4, no. 1 (January 24, 2023): 260–266. Accessed July 4, 2025. https://yrpipku.com/journal/index.php/ijedr/article/view/1944.