Samonte, A. S. (2011). Why is the price so high? Is there a cartel? The Sunday Times.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSamonte, Angelo S. "Why Is the Price so High? Is There a Cartel?" The Sunday Times 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSamonte, Angelo S. "Why Is the Price so High? Is There a Cartel?" The Sunday Times, 2011.
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