Chong, Y. L. (2011). Economic Impact of Tourist Expenditure on Tourism Industry in Penang.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChong, Yee Lee. Economic Impact of Tourist Expenditure on Tourism Industry in Penang. 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रChong, Yee Lee. Economic Impact of Tourist Expenditure on Tourism Industry in Penang. 2011.
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