Ong, E. D. (2008). Happy Slip makes videoblogs of Philippine visit, promotes tourism with Filipino humor. Manila Bulletin.
Chicago-viite (17. p.)Ong, Edison D. "Happy Slip Makes Videoblogs of Philippine Visit, Promotes Tourism with Filipino Humor." Manila Bulletin 2008.
MLA-viite (9. p.)Ong, Edison D. "Happy Slip Makes Videoblogs of Philippine Visit, Promotes Tourism with Filipino Humor." Manila Bulletin, 2008.
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