Usman, E. K. PH internet: 20 years then, and what to expect next. IN National News. The Philippine Star.
Čikaški stil citiranja (17. izdanje)Usman, Edd K. "PH Internet: 20 Years Then, and What to Expect Next. IN National News." The Philippine Star .
MLA način citiranja (9. izdanje)Usman, Edd K. "PH Internet: 20 Years Then, and What to Expect Next. IN National News." The Philippine Star, .
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