00287nam a22001217a 4500008004100000020001500041100001600056245002500072250001300097260003400110300000900144546001200153230523b        |||||||| |||| 00| 0 eng d  a8151611760  aS. P. Gupta  aStatistical Methods   a46th Ed.  aNew DelhibSultan Chandc2021  a1112  aEnglish