Chipongian, L. C. (2003). BIR expands paperless tax system registration. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChipongian, Lee C. "BIR Expands Paperless Tax System Registration." Manila Bulletin 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रChipongian, Lee C. "BIR Expands Paperless Tax System Registration." Manila Bulletin, 2003.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.