GUPTA,O.P creator text JALANDHAR S.DINESH & CO 2008 4TH monographic 328 OFFICE COMMUNICATION, ENGLISH BASIC FORMS OF BUSINESS COMMUNICATION, DIFFERENT MODELS AND PROCESSES OF COMMUNICATION, EFFECTIVE COMMUNICATION, THEORIES OF COMMUNICATION AND AUDIENCE ANALYSIS, SELF DEVELOPMENT AND COMMUNICATION, CORPORATE COMMUNICATION, KINDS OF BUSINESS LETTERS, WRITING SKILLS 651.74,GUP