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KOT'P04 PG/2070 PG/2889 PG/4758 PG/4759 PG/4760 Kothari, C. R. Research methodology : methods and techniques / C. R. Kothari. – 2nd rev. ed. – New Delhi, Kolkata : New Age International, 2004 (reprint 2009) xvi, 401p. ISBN9788122415223 : ISBN8122415229 : Rs.200/- . Research construction |
