Hayati, N., Sulistyono, E., Anggraeni, A. S., Handayani, V. A., Sabarinsyah, & Devikaduri, L. (2026). Identifying Leading Hazards in Riau Islands: A Monthly Markov Chain Analysis of Disaster Dominance Patterns. Jurnal Matematika UNAND, 15(3), 436–448. https://doi.org/10.25077/jmua.15.3.436-448.2026