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Bill Ward (2008-01-09). "An Unusual Low in the Northwest Pacific Ocean"(PDF). National Weather Service Weather Forecast Office Honolulu, Hawaii. American Meteorological Society. Retrieved 2008-01-28.
geocities.com
Staff Writer (2008-06-23). "PAGASA Advisory 2008-06-23 09z". Philippine Atmospheric, Geophysical and Astronomical Services Administration. Archived from the original on May 7, 2008. Retrieved 2009-01-20.