Wiyono, S. N., H. N. Utami, and N. H. Kamarulzaman. “Does Consumer Like the Coffee? A Study of Product Quality of a Local Business Ground Roasted Coffee in North Sumatera”. International Journal of Social Science and Business, vol. 8, no. 2, Nov. 2024, pp. 350-61, doi:10.23887/ijssb.v8i2.76172.