SUFIAN, A. J. M. (1998). METHODS AND TECHNIQUES OF SOCIAL RESEARCH. The University Press Limited.
Chicago-viite (17. p.)SUFIAN, ABU JAFAR MOHAMMAD. METHODS AND TECHNIQUES OF SOCIAL RESEARCH. 114 Motijheel C/A, Dhaka 1000: The University Press Limited, 1998.
MLA-viite (9. p.)SUFIAN, ABU JAFAR MOHAMMAD. METHODS AND TECHNIQUES OF SOCIAL RESEARCH. The University Press Limited, 1998.
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