Ng, J. P. (2010). Lean construction systems & tools in improving operational performance / Ng Jing Peng.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNg, Jing Peng. Lean Construction Systems & Tools in Improving Operational Performance / Ng Jing Peng. 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNg, Jing Peng. Lean Construction Systems & Tools in Improving Operational Performance / Ng Jing Peng. 2010.
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