Helft, M. Tech class that shook an industry: How a project on apps led to lean start-ups. Manila bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHelft, Miguel. "Tech Class That Shook an Industry: How a Project on Apps Led to Lean Start-ups." Manila Bulletin .
एमएलए (9वां संस्करण) प्रशस्ति पत्रHelft, Miguel. "Tech Class That Shook an Industry: How a Project on Apps Led to Lean Start-ups." Manila Bulletin, .
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