Basic Knowledge of Water Rescue for Cadets of the Police Academy Battalion Level I / Promoter Battalion Class A-D
By: Dr. Ir. Sugeng Widada, M. Si.; Ir. Hariyadi, M. T. Rikha Widiaratih, S.Si, M.Si; Ir. Gentur Handoyo, M.Si; Drs. Jarot Marwoto, M. Pd Indonesia