Panneerselvam, R. (2004). Research methodology. PHI.
Cita Chicago (17th ed.)Panneerselvam, R. Research Methodology. New Delhi: PHI, 2004.
Cita MLA (9th ed.)Panneerselvam, R. Research Methodology. PHI, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.