Valencia, L. B. (2003). By 2005, one in four Filipinos is a mobile phone user - CLS. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रValencia, Lynda B. "By 2005, One in Four Filipinos Is a Mobile Phone User - CLS." Manila Bulletin 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रValencia, Lynda B. "By 2005, One in Four Filipinos Is a Mobile Phone User - CLS." Manila Bulletin, 2003.
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