AVT Navigator P820: The Philippines first portable GPS navigation system gets an upgrade. IN Tech101. Manila Bulletin.
Chicago Style (17th ed.) Citation"AVT Navigator P820: The Philippines First Portable GPS Navigation System Gets an Upgrade. IN Tech101." Manila Bulletin .
MLA (9th ed.) Citation"AVT Navigator P820: The Philippines First Portable GPS Navigation System Gets an Upgrade. IN Tech101." Manila Bulletin, .
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