Mohd Firdaus Abdullah; Arba’iyah Mohd Noor. Pembangunan Bekalan Air Domestik Di Negeri Kedah, 1957–1992 The Development of Domestic Water Supply in Kedah, 1957–1992. km 2020, 38 (1), 89–113. https://doi.org/10.21315/km2020.38.1.5.