00541ctm a2200217u 4500 20250312111131.0 ta 150206s2009 nyua 000 0 eng Koul, Lokesh. The methodology of educational research,. [manuscript]. 4th ed. New Delhi, : Vikas, 2009. xii, 532 p. : illus. ; 21 cm. Education. Research. Methodology. Educational research. BK 9 18733 18733 0 0 0 0 EGSTL EGSTL CIRC 2025-03-09 0 370.7 Kou 2009 7747 2025-06-30 00:00:00 2025-03-09 BK