Sadhu, A., & Singh, A. (1980). Research methodology in social sciences.
シカゴスタイル引用形Sadhu, A.N, , Amarjit Singh. Research Methodology in Social Sciences. 1980.
MLA引用形式Sadhu, A.N, , Amarjit Singh. Research Methodology in Social Sciences. 1980.
警告: この引用は必ずしも正確ではありません.