00381    a2200157   4500003000400000005001700004008004100021020001800062040000900080082002000089100001700109245003200126250001300158260004300171300000900214OSt20231202120650.0231202b        |||||||| |||| 00| 0 eng d  a9788171801343  coclc  a894.8123bKES/O  aKesavadev, P  aOdayilninnu /cP. Kesavadev  a25th ed.  aKozhikode:bPoorna publications,c2023  a88p.