Gupta, Mukul. Research methodology / Mukul Gupta,Deepa Gupta. - New Delhi : PHI Learning , 2013. - xvi,240p. : figure ; 23cm 1 CD . includes index ISBN: 9788120343818 RS225.00 Subjects--Index Terms: RESEARCH METHODOLOGY Dewey Class. No.: 001.42 / GUP/R