1. IPHER (Institute of Public Health Engineering & Research) (1978). Ravi “Ravi River Pollution Study-II”, Report No.038-06-78, UET, Lahore.
2. IPHER (Institute of Public Health Engineering & Research) (1979). Ravi River Pollution Study-III, Report No. 039-07-79, UET, Lahore.
3. IPHER (Institute of Public Health Engineering & Research) (1980). Ravi River Pollution Study and Sewage Treatment Alternatives for Lahore, Report No.043-09-80, UET, Lahore.
4. Khan, M., Khan, N. H., & Aslam, H., (2003) Hudiara drain-a case of trans-boundary water pollution between India and Pakistan, Pakistan Journal of Biological Sciences.
5. MoE (Ministry of Environment) Government of Pakistan (2006). National Sanitation Policy, Islamabad, Pakistan.