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Wen Kam Leong; Alex Lung Keat Ngo; Alvin Choon Hsien Wong; Jen Hua Ling; How Teck Sia. The Mandatory 4 Years Desludging Frequency of Underground Septic Tanks in Residential Areas: A Case Study in Sibu Sarawak, East Malaysia. J. civil eng. forum 2022, 8, 147-156.