Philippines. National Statistics Office. (2007). 2007 Philippine yearbook. National Statistics Office.
Dyfyniad Arddull ChicagoPhilippines. National Statistics Office. 2007 Philippine Yearbook. Manila: National Statistics Office, 2007.
Dyfyniad MLAPhilippines. National Statistics Office. 2007 Philippine Yearbook. National Statistics Office, 2007.
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