Tohutoro APA (7th ed.)

SUFIAN, A. J. M. (1998). METHODS AND TECHNIQUES OF SOCIAL RESEARCH. The University Press Limited.

Tohutoru Kātū Chicago (17th ed.)

SUFIAN, ABU JAFAR MOHAMMAD. METHODS AND TECHNIQUES OF SOCIAL RESEARCH. 114 Motijheel C/A, Dhaka 1000: The University Press Limited, 1998.

Tohutoro MLA (9th ed.)

SUFIAN, ABU JAFAR MOHAMMAD. METHODS AND TECHNIQUES OF SOCIAL RESEARCH. The University Press Limited, 1998.