Casanova, S. (2002). Prepaid cards boost internet industry growth. Manila Times.
Chicagoスタイル(17版)引用形式Casanova, Sheryll. "Prepaid Cards Boost Internet Industry Growth." Manila Times 2002.
MLA(9版)引用形式Casanova, Sheryll. "Prepaid Cards Boost Internet Industry Growth." Manila Times, 2002.
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