Bhattacharyya, D. K. (2006). Researrch methodology. Excel.
Chicago-čujuhus (17. p.)Bhattacharyya, Dipak Kumar. Researrch Methodology. New delhi: Excel, 2006.
MLA-čujuhus (9. p.)Bhattacharyya, Dipak Kumar. Researrch Methodology. Excel, 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.