Abaya, E. F. (1994). EDI: Technology for paperless transactions. Philippine Engineering Journal.
Cita Chicago Style (17a ed.)Abaya, Efren F. "EDI: Technology for Paperless Transactions." Philippine Engineering Journal 1994.
Cita MLA (9a ed.)Abaya, Efren F. "EDI: Technology for Paperless Transactions." Philippine Engineering Journal, 1994.
Precaución: Estas citas no son 100% exactas.