PradanaC., BaktionoA., & SaputriR. (2022). Effect of Relationship Marketing Towards Customer Loyalty in the Lubricant Industry. JIEEB nternational ournal of ntegrated ducation, ngineering and usiness ISSN 2615-1596 ISSN 2615-2312, 5(02), 77-87. https://doi.org/10.29138/ijieeb.v5i02.2117