00301nam a2200109Ia 4500008004100000020001800041041000800059082001600067100001600083245004900099260004300148230717s9999    xx            000 0 und d  a0-85226-477-1  aeng  a001.42bKOT  aKothari C.R  aResearch Methodology: Methods And Techniques  aNew DelhibWiley Eastern Limitedc1985