How to cite this article:
Jehan Zeb , M.Aslam , Shahid Ahmad and Aamir Kabir , 1999. Low-cost Sand Filter For Domestic and Stockwater Use . Pakistan Journal of Biological Sciences, 2: 1415-1418. DOI: 10.3923/pjbs.1999.1415.1418 URL: https://scialert.net/abstract/?doi=pjbs.1999.1415.1418
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