कौल, लोकेश = Koul, Lokesh शैक्षिक अनुसंधान की कार्यप्रणाली = Methodology of Educational Research - Noida: Vikash; 2021. - 542p. ISBN: 9788125906049 Subjects--Topical Terms: Research Methodology Dewey Class. No.: 001.42 KOU