Jain , G. (1998). Research methodology: Methods, tools and techniques. Mangal Deep.
Chicago-čujuhus (17. p.)Jain , Gopal. Research Methodology: Methods, Tools and Techniques. Jaipur: Mangal Deep, 1998.
MLA-čujuhus (9. p.)Jain , Gopal. Research Methodology: Methods, Tools and Techniques. Mangal Deep, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.