Alvarez, V. M. (1998). Zamboanga City tagged as illegal drugs outpost. Manila Times.
Chicago-viite (17. p.)Alvarez, Vic M. "Zamboanga City Tagged as Illegal Drugs Outpost." Manila Times 1998.
MLA-viite (9. p.)Alvarez, Vic M. "Zamboanga City Tagged as Illegal Drugs Outpost." Manila Times, 1998.
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