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Irregularities in quarry income collection persist
Published in Philippine Daily Inquirer (2005)Article -
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Pampanga quarry issue becoming complicated. IN Countryside pulse [column]
Published in Manila Times (2005)Article -
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Role of jueteng men in quarry taxes seen in Pampanga
Published in Philippine Daily Inquirer (2004)Article -
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Pampanga gov vows to raise quarry revenue to P20M
Published in Philippine Daily Inquirer (2004)Article -
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DENR local officials still supervise, control quarrying operations
Published in Manila Times (2003)Article