Tests and measurements in social research - K. Chandrakandan; J. Venkatapirabu V. Sekar V. Anandakumar (Newdelhi A.P.H. publishing Corporation, 2001)
K. Chandrakandan; J. Venkatapirabu; V. Sekar & V. Anandakumar: Tests and measurements in social research. Newdelhi. A.P.H. publishing Corporation, 2001. 81-7648-241-2--(300.72CHA)
ENGLISH