Pradiani, T., Suwandi, and Fathorrahman. “The Influence of Service Quality and Product Quality Through Customer Satisfaction on Customer Loyalty at Vegetarian Restaurant Fortunate Taste Batam”. International Journal of Social Science and Business, vol. 7, no. 2, June 2023, pp. 466-75, doi:10.23887/ijssb.v7i2.54514.