B. A. Widyantoro, M. D. Rujid, A. Hidayat, M. Z. Mohammad, M. I. Pratama, and U. Mustofa, “Spatial Analysis of Coastal Vulnerability Index (CVI) as a Basis for Coastal Design for Safety (DfS) Strategy in Balikpapan Timur District”, ISMATECH, vol. 4, no. 2, Sep. 2026.