Mercurio, R. Smart makes first voice-over WiFi call outside Metro Manila. The Philippine Star.
Chicago Style (17th ed.) CitationMercurio, Richmond. "Smart Makes First Voice-over WiFi Call Outside Metro Manila." The Philippine Star .
MLA (9th ed.) CitationMercurio, Richmond. "Smart Makes First Voice-over WiFi Call Outside Metro Manila." The Philippine Star, .
Warning: These citations may not always be 100% accurate.