De Roda, A. P. (2002). Prepaid messaging: Proven 2/2.5G winning business case to foster 3G! Manila Bulletin.
Chicago Style (17th ed.) CitationDe Roda, Antonio Pio. "Prepaid Messaging: Proven 2/2.5G Winning Business Case to Foster 3G!" Manila Bulletin 2002.
MLA (9th ed.) CitationDe Roda, Antonio Pio. "Prepaid Messaging: Proven 2/2.5G Winning Business Case to Foster 3G!" Manila Bulletin, 2002.
Warning: These citations may not always be 100% accurate.