Ustha, Endrianto, and Ratna Nurani. “Innovative Strategies for Customer Satisfaction in Service Quality: A Case Study of Indonesian Islamic Banks in Pekanbaru”. INVEST : Jurnal Inovasi Bisnis dan Akuntansi 6, no. 1 (May 20, 2025): 82-93. Accessed October 30, 2025. https://journal.al-matani.com/index.php/invest/article/view/1221.