Somprom, Sukanya, Supawan Khotama, and Watcharin Klongdee. “Maximizing the retention level for proportional reinsurance under  -regulation of the finite time surplus process with unit-equalized interarrival time”. Suan Sunandha Science and Technology Journal 3, no. 2 (November 24, 2022): 17–21. accessed April 5, 2025. https://li02.tci-thaijo.org/index.php/ssstj/article/view/276.