by M M Metwally | .
by C M Palvia | .
by Jha, Minni | .
by Heber, Gerhard | .
by Duraipandian, P | .
by Freeman, J.B | .
by Mahanta , K C | .
by Alfred De Souza | .
by Harry W. Blair | .
by A.K. Dasgupta | .
by E. Ahmed | .
by S.K. Goyal | .
by Nasim Ansari | .
by A. Mariakulandi | T.S. Mauickam.
by Rangaswami, G | .
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