Sinaga, Euodia Adriana, Yogo Purwono, Lukman Hanif Arbi, and Lenny Suardi. “IBNR Reserve Estimation Using Chain-Ladder and Bootstrap Chain-Ladder Methods”. Image : Jurnal Riset Manajemen 13, no. 2 (October 30, 2025): 226–235. Accessed September 18, 2026. https://ejournal-economy.upi.edu/image/article/view/188.