Sufian, A. J. M. (1998). Methods and techniques of social research. University Press.
Chicago (17e ed.) BronvermeldingSufian, Abu Jafar Mohammad. Methods and Techniques of Social Research. Dhaka: University Press, 1998.
MLA (8e ed.) BronvermeldingSufian, Abu Jafar Mohammad. Methods and Techniques of Social Research. University Press, 1998.
Let op: Deze citaties zijn niet altijd 100% accuraat.