00445nam a22001577a 450000500170000001000170001702000260003403500170006003700150007708200110009210000150010324500370011826000360015527000580019130000380024920180423123352.0  aB-691563-564  c995.00a9788170336549  aB-691563-564  bR.K.Books   a001.42  aAhuja, Ram  aResearch methods /cby Ram Ahuja  aDelhibRawat Publicationsc2018  asatayam Apts., Sector3, Jawahar NagarbJaipure302004  a454 p. : tabl., graph.c22cm (Hb)