Casanova, S. (2002). Cellular service providers nix proposed phone card tax scheme. Manila Times.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCasanova, Sheryll. "Cellular Service Providers Nix Proposed Phone Card Tax Scheme." Manila Times 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCasanova, Sheryll. "Cellular Service Providers Nix Proposed Phone Card Tax Scheme." Manila Times, 2002.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.