Pathaka, N. S. Pragata prayogika manovijana : saidhantika / N. S. Pathaka - 2nd ed. - Ahmedabad : University Grantha Nirmana Board, 1991 - vi, 38 p. ; 21 cm. ISBN: Rs. 34.00 Subjects--Topical Terms: Psychology--ResearchPsychology, Experimental Dewey Class. No.: 150.72