Mohd. Umar, M. A. (2011). Project quality effectiveness in renovation works at Telekom Malaysia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMohd. Umar, Mohd. Asmadi. Project Quality Effectiveness in Renovation Works at Telekom Malaysia. 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMohd. Umar, Mohd. Asmadi. Project Quality Effectiveness in Renovation Works at Telekom Malaysia. 2011.
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