Bhattacharyya, D. (2013). Research methodology (3.). Excel Books.
Chicago-čujuhus (17. p.)Bhattacharyya, Dipak. Research Methodology. 3. New Delhi: Excel Books, 2013.
MLA-čujuhus (9. p.)Bhattacharyya, Dipak. Research Methodology. 3. Excel Books, 2013.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.