Singh, N. (2007). Problems and solutions in project management and control.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSingh, Narendra. Problems and Solutions in Project Management and Control. Mumbai, 2007.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSingh, Narendra. Problems and Solutions in Project Management and Control. 2007.
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