Markonah, Markonah, Hedwigis Esti Riwayati, and Riska Kumalasari. “The Effect of Premium Income, Expenses Claim, and Underwriting on Profitability of Indonesia Joint Enterprises Insurance Companies”. Jurnal Siasat Bisnis 27, no. 2 (September 19, 2023): 219–234. Accessed November 21, 2024. https://journal.uii.ac.id/JSB/article/view/27520.