APA-čujuhus (7. p.)

Sufian, A. J. M. (2009). Methods and Techniques of Social Research. University Pr..

Chicago-čujuhus (17. p.)

Sufian, Abu Jafar Mohammad. Methods and Techniques of Social Research. Dhaka: University Pr., 2009.

MLA-čujuhus (9. p.)

Sufian, Abu Jafar Mohammad. Methods and Techniques of Social Research. University Pr., 2009.

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