(1997). PAL forced to hike domestic fares due to huge looses. Philippine Star.
Chicago-viite (17. p.)"PAL Forced to Hike Domestic Fares Due to Huge Looses." Philippine Star 1997.
MLA-viite (9. p.)"PAL Forced to Hike Domestic Fares Due to Huge Looses." Philippine Star, 1997.
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