Singh, K. (2006). Fundamentals of RESEARCH METHODOLOGY and STATISTICS. NEW AGE INTERNATIONAL PUBLISHERS.
Cita Chicago (17th ed.)Singh, Kumar. Fundamentals of RESEARCH METHODOLOGY and STATISTICS. INDIA: NEW AGE INTERNATIONAL PUBLISHERS, 2006.
Cita MLA (9th ed.)Singh, Kumar. Fundamentals of RESEARCH METHODOLOGY and STATISTICS. NEW AGE INTERNATIONAL PUBLISHERS, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.