Singh, N. (2007). Problems and solutions in project management and control.
Chicago-čujuhus (17. p.)Singh, Narendra. Problems and Solutions in Project Management and Control. Mumbai, 2007.
MLA-čujuhus (9. p.)Singh, Narendra. Problems and Solutions in Project Management and Control. 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.