Sudiartini, N. W. A., A. A. E. Astari, N. L. Kardini, and Y. R. Dhani. “The Feasibility Study of Coffee House Business Opportunity in COVID-19 Pandemic: A Case Study at Kulo Coffee Shop Pemogan”. International Research Journal of Management, IT and Social Sciences, vol. 7, no. 5, Aug. 2020, pp. 38-45, doi:10.21744/irjmis.v7n5.966.