Daftar Pustaka:
- Smith, J. (2021). Customer Satisfaction in the Coffee Industry: Key Factors and Trends. Journal of Consumer Research, 34(2), 105-120.
- Global Coffee Report. (2022). The State of the Global Coffee Market: Trends and Insights. Retrieved from https://www.globalcoffeereport.com/state-of-global-coffee-market
- International Coffee Organization. (2023). Sustainability in the Coffee Industry: Challenges and Opportunities. Retrieved from https://www.ico.org/sustainability-in-coffee-industry
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