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BIR extends validity of expired official receipts, sales invoices
Published in Manila Bulletin (2022)Article -
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Hindsight on the electric bill confusion. IN Opinion [column]
Published in Manila Standard (2020)Article -
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Charging for mobile all-IP telecommunications
Published 2008Available for University of the Philippines Diliman College of Engineering via IEEE Xplore. Click here to access
Also available remotely for University of the Philippines Diliman College of Engineering via IEEE Xplore. Click here to access thru EZproxy
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