Tirona, G. A. (1998). More women managers seen in next millennium. Philippine Star.
Chicago-viite (17. p.)Tirona, Gertie Ampil. "More Women Managers Seen in Next Millennium." Philippine Star 1998.
MLA-viite (9. p.)Tirona, Gertie Ampil. "More Women Managers Seen in Next Millennium." Philippine Star, 1998.
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