Hydrological data water quality records - Malaysia. Ministry of Agriculture and Rural Development; Malaysia. Jabatan Pengairan dan Saliran; Malaysia. Kementerian Sumber Asli, Alam Sekitar dan Perubahan Iklim; Malaysia. Kementerian Pertanian dan Pembangunan Luar Bandar (Kuala Lumpur : Ministry of Agriculture and Rural Development, Malaysia, 1974)
Keywords: Water quality -- Malaysia -- Measurement; Water quality -- Malaysia -- Statistics