Ali, A., H. N. Hashmi, I. A. Querashi, and A. Saeed. “Treatment Feasibility of NSSC Pulping Effl Uent Using UASB Reactor”. Hydro Nepal: Journal of Water, Energy and Environment, vol. 5, Jan. 2010, pp. 46-49, doi:10.3126/hn.v5i0.2489.