NATIONAL ASSOCIATION OF SOFTWARE AND SERVICE COMP. (1999). NASSCOM`S HANDBOOK I.T. ENABLED SERVICES. NASSCOM.
Chicago-čujuhus (17. p.)NATIONAL ASSOCIATION OF SOFTWARE AND SERVICE COMP. NASSCOM`S HANDBOOK I.T. ENABLED SERVICES. NEW DELHI: NASSCOM, 1999.
MLA-čujuhus (9. p.)NATIONAL ASSOCIATION OF SOFTWARE AND SERVICE COMP. NASSCOM`S HANDBOOK I.T. ENABLED SERVICES. NASSCOM, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.