1. Non-steady flow for wells with decreasing discharges;Abo-Zeid;Proc. Am. Soc. Civ. Eng. J. Hydraul. Div,1963
2. Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables,1972
3. Water Well Handbook;Anderson,1967
4. Evaluation of groundwater resources in the upper middle part of Chaj Doab area, Pakistan;Ahmad,1998
5. Simplified solution for decreasing flow in wells;Aron;Proc. Am. Soc. Civ. Eng. J. Hydraul. Div.,1965