Ong, Y., Lee, B., Chua, A., & Ngoh, G. (2009). Establishment of enhanced biological phosphorus removal process by using seed sludge from a conventional activated sludge process.

Ong, Y.H., B.P Lee, A.S.M Chua, و G.C Ngoh. Establishment of Enhanced Biological Phosphorus Removal Process By Using Seed Sludge From a Conventional Activated Sludge Process. 2009.

Ong, Y.H., B.P Lee, A.S.M Chua, و G.C Ngoh. Establishment of Enhanced Biological Phosphorus Removal Process By Using Seed Sludge From a Conventional Activated Sludge Process. 2009.