Islam, M. N. (2011). An Introduction to Research Methods (3rd ed.). Mullick & Brothers.
Cita Chicago (17th ed.)Islam, M. Nurul. An Introduction to Research Methods. 3rd ed. Dhaka: Mullick & Brothers, 2011.
Cita MLA (9th ed.)Islam, M. Nurul. An Introduction to Research Methods. 3rd ed. Mullick & Brothers, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.