Isip, I. (2007). Philippine trade and investments. AmCham Philippines Business Journal.
Cita Chicago (17th ed.)Isip, Irma. "Philippine Trade and Investments." AmCham Philippines Business Journal 2007.
Cita MLA (9th ed.)Isip, Irma. "Philippine Trade and Investments." AmCham Philippines Business Journal, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.