Παραπομπή APA

Ranjit Kumar. (2016). Research methodology: A Step by step guide for beginners (Ed.2.). Pearson Education.

Παραπομπή Chicago Style

Ranjit Kumar. Research Methodology: A Step by Step Guide for Beginners. Ed.2. South Asia: Pearson Education, 2016.

Παραπομπή MLA

Ranjit Kumar. Research Methodology: A Step by Step Guide for Beginners. Ed.2. Pearson Education, 2016.