Feria, R. OS wars: When operating systems become as fierce as the users. IN Tech News. Manila Bulletin.
Chicago-referens (17:e uppl.)Feria, Rommel. "OS Wars: When Operating Systems Become as Fierce as the Users. IN Tech News." Manila Bulletin .
MLA-referens (9:e uppl.)Feria, Rommel. "OS Wars: When Operating Systems Become as Fierce as the Users. IN Tech News." Manila Bulletin, .
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.