Kelkar S A. (2007). Information Technology Project Management (2nd.). PHI.
Chicago-čujuhus (17. p.)Kelkar S A. Information Technology Project Management. 2nd. New Delhi: PHI, 2007.
MLA-čujuhus (9. p.)Kelkar S A. Information Technology Project Management. 2nd. PHI, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.