Maragay, F. V. (2009). A high-tech tracking system. IN First crack [column]. Manila Standard Today.
Chicago-viite (17. p.)Maragay, Fel V. "A High-tech Tracking System. IN First Crack [column]." Manila Standard Today 2009.
MLA-viite (9. p.)Maragay, Fel V. "A High-tech Tracking System. IN First Crack [column]." Manila Standard Today, 2009.
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