Akmalulhadi, A., Z. Zulkarnain, and L. T. Berampu. “Analysis of Islamic Service Quality and Price on Customer Satisfaction and Repurchase Intention in Umrah Pilgrims in Pekanbaru”. Indonesian Journal of Economics, Social, and Humanities, vol. 8, no. 2, June 2026, pp. 137-56, doi:10.31258/ijesh.8.2.137-156.