Situmeang, R. R., W. Tanzil, V. Tandratama, and S. A. Putra. “The Effect of Product Quality, Distribution Channels and Service Quality on Customer Satisfaction Spotlights”. Enrichment : Journal of Management, Vol. 10, no. 2, May, May 2020, pp. 44-49, doi:10.35335/enrichment.v10i2, May.20.