(2020). Tak Ying Chan's urban sanitation stations safeguard both society and our natural surroundings. Frame.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Tak Ying Chan's Urban Sanitation Stations Safeguard Both Society and Our Natural Surroundings." Frame 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्र"Tak Ying Chan's Urban Sanitation Stations Safeguard Both Society and Our Natural Surroundings." Frame, 2020.
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