APA استشهاد

Gopal Lal Jain. (2003). Research methodology: Methods, tools & techniques (2.). Mangal Deep.

استشهاد بنمط شيكاغو

Gopal Lal Jain. Research Methodology: Methods, Tools & Techniques. 2. Jaipur: Mangal Deep, 2003.

MLA استشهاد

Gopal Lal Jain. Research Methodology: Methods, Tools & Techniques. 2. Mangal Deep, 2003.