Methods and techniques Kothari, C. R creator Garg, Gaurav text London New Age International (P) Ltd. c2019 4th ed. : monographic xxi, 458p. : Coloured ill. by C.R, Kothari and Gaurav Garg Includes bibliographical references, index and appendix Research methodology Q180.55 .M4 K67 2019 9789386649225 UOEL 000 20260311125844.0