Tiwari, Ramaknath. Encyclopaedia of social science : methodology of social research / Ramaknath Tiwari and Mahesh Dabhade. - New Delhi : Commonwealth, c 2008. - v, 393 p. ; 26 cm. V. 4-- ; 338 338 ISBN: 978-81-311-0139-1 Subjects--Topical Terms: Encyclopaedia- Social Science. Dewey Class. No.: 300.3 / T43e