Sumarnis, Larasati Varahel, Arinastuti Arinastuti, and Akbar Pahlevi. 2026. “Improving Customer Satisfaction at Purwanegara Gas Station in Purwokerto Through Service Quality”. ProBisnis : Jurnal Manajemen 17 (1):298-306. https://ejournal.joninstitute.org/index.php/ProBisnis/article/view/1393.