National Convention on Statistics Mandaluyong City. (2004). 9th National Convention on Statistics: Convention papers. Philippine Statistical System.
Chicago-referens (17:e uppl.)National Convention on Statistics Mandaluyong City. 9th National Convention on Statistics: Convention Papers. [Manila: Philippine Statistical System, 2004.
MLA-referens (9:e uppl.)National Convention on Statistics Mandaluyong City. 9th National Convention on Statistics: Convention Papers. Philippine Statistical System, 2004.
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