Yuwono, Agung Budi, Rifki Hanif, and Lussia Andriany. 2026. “Service Quality, Product Diversity, and Customer Loyalty: The Intervening Role of Purchase Decisions”. Golden Ratio of Mapping Idea and Literature Format 6 (2):1828-38. https://doi.org/10.52970/grmilf.v6i2.2119.