Ling, S. K. (2011). Study on municipal solid waste management in Malaysia: Case study in Kuching, Miri and Sibu.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLing, Song Kai. Study on Municipal Solid Waste Management in Malaysia: Case Study in Kuching, Miri and Sibu. 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLing, Song Kai. Study on Municipal Solid Waste Management in Malaysia: Case Study in Kuching, Miri and Sibu. 2011.
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