00459nam a22001457a 450000500170000000800410001704000090005804100120006710000160007924501260009526000360022130000080025765000240026572000240028920220928162429.0220928b        |||||||| |||| 00| 0 eng d  aMAIN  aEnglish  aNand, Khima  aEcological Characterrization of Asi Ganga Sub-Basin Using remote sensing and geographical information system technologies  aDehradunbDoon Universityc2021  a275  aEnvironment Science  aDr. Suneet Naithani