Too, P. W. (2010). Development of concept design for an ideal intercity bus.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रToo, Phooi Wah. Development of Concept Design for an Ideal Intercity Bus. 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रToo, Phooi Wah. Development of Concept Design for an Ideal Intercity Bus. 2010.
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