Kothari ,C.R Research Methodology : Methods and Techniques / by C R Kothari and Gaurav Garh - 4th ed. - New Delhi: New Age International , 2020. - xxi,458p. ISBN: 9789386649225 Subjects--Topical Terms: AlogorithimsAnnovaMulticolinearltySociology Dewey Class. No.: 001.42 / KOT/R