(2001). Promoting call 117 as the country's efficient emergency dial system. Philippine Star.
Čikaški stil citiranja (17. izdanje)"Promoting Call 117 as the Country's Efficient Emergency Dial System." Philippine Star 2001.
MLA način citiranja (9. izdanje)"Promoting Call 117 as the Country's Efficient Emergency Dial System." Philippine Star, 2001.
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