00335nam a22001217a 4500020001800000082002000018100001400038245005300052260002800105300002600133650002700159650002700186  a9789353500238  a658.45  bGUP/E  aGupta C B  aEssentials of business communication/cC B Gupta  aDelhi:bCengage,c2019.  aVarying pages;b18cm.  aBusiness Communication  aBusiness Presentations