Mateo, J. Google launches earthquake alerts system in Phl. IN News. The Philippine Star.
Čikaški stil citiranja (17. izdanje)Mateo, Janvic. "Google Launches Earthquake Alerts System in Phl. IN News." The Philippine Star .
MLA način citiranja (9. izdanje)Mateo, Janvic. "Google Launches Earthquake Alerts System in Phl. IN News." The Philippine Star, .
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