Samar, R. R. (2001). Smart makes secure Net payment with electronic cash card system. Manila Bulletin.
Chicago Style (17. basım) AtıfSamar, Red R. "Smart Makes Secure Net Payment with Electronic Cash Card System." Manila Bulletin 2001.
MLA (9th ed.) AtıfSamar, Red R. "Smart Makes Secure Net Payment with Electronic Cash Card System." Manila Bulletin, 2001.
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