D. Kristiyadi and R. D. A. Yuliantri, “Disaster, Involution, and Dependency: a Socio-Economic Analysis of the 1861 Flood in the Residency of Bagelen”, Fajar Hist. J. Ilmu Sej. dan Pendidik., vol. 9, no. 3, pp. 579–591, Dec. 2025.