APA (7 वां संस्करण) प्रशस्ति पत्र
Singh, N. (2008). A guide on project work: Guidance on project work, basics of management in practice, guidance on the sample list of topics for project. Himalaya Pub. House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Singh, Narendra. A Guide on Project Work: Guidance on Project Work, Basics of Management in Practice, Guidance on the Sample List of Topics for Project. Mumbai: Himalaya Pub. House, 2008.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Singh, Narendra. A Guide on Project Work: Guidance on Project Work, Basics of Management in Practice, Guidance on the Sample List of Topics for Project. Himalaya Pub. House, 2008.
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