Septifani, R. et al. 2019. Consumer satisfaction analysis towards chocolate-based product using importance performance analysis and customer satisfaction index method: Case study at Kampung Coklat Blitar Indonesia. Journal of Management, Economics, and Industrial Organization. 3, 2 (May 2019), 48–65. DOI:https://doi.org/10.31039/jomeino.2019.3.2.4.