Koul,, . L. (1997). Methodology of educational research (3rd rev ed.). Vikas.
シカゴスタイル引用形Koul,, Lokesh. Methodology of Educational Research. 3rd rev ed. New Delhi: Vikas, 1997.
MLA引用形式Koul,, Lokesh. Methodology of Educational Research. 3rd rev ed. Vikas, 1997.
警告: この引用は必ずしも正確ではありません.