scholarly journals ASSESSMENT AND MAPPING OF WATER QUALITY INDEX OF GROUNDWATER IN RENIGUNTA NEAR TIRUPATI, ANDHRA PRADESH USING GEOGRAPHICAL INFORMATION SYSTEMS.

2016 ◽  
Vol 4 (4) ◽  
pp. 1500-1504
Author(s):  
S.Aruna Jyothy ◽  
◽  
A.Indrakiran Reddy ◽  
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