TY - JOUR A1 - Arriafdi, N. A1 - Zainon, O. A1 - Din, U. A1 - Rasid, A. W. A1 - Mat Amin, Z. A1 - Othman, R. A1 - Mardi, A. S. A1 - Mahmud, R. A1 - Sulaiman, N. T1 - HULU SUNGAI PERAK BED SEDIMENT MAPPING USING UNDERWATER ACOUSTIC SONAR JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XLII-4/W1 SP - 339 EP - 343 Y1 - 2016/09/30 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XLII-4-W1/339/2016/ L1 - https://isprs-archives.copernicus.org/articles/XLII-4-W1/339/2016/isprs-archives-XLII-4-W1-339-2016.pdf DO - 10.5194/isprs-archives-XLII-4-W1-339-2016 ER -