Fauziah, Raudhatul, and Shinta Wahyu Hati. “Analysis of Product Differentiation on Customer Satisfaction and The Effect on Customer Loyalty at Jomtea Batam”. Jurnal Bisnis Dan Kewirausahaan, vol. 3, no. 1, Mar. 2026, pp. 81-91, https://doi.org/10.71154/181z7j86.