Abakada Guro Party List versus Ermita
GR 168056, September 1, 2005 (Separate Opinion)
Commissioner of Internal Revenue versus Central Luzon Drug Corporation
GR 159647, April 15, 2005
Commissioner of Internal Revenue versus Seagate Technology
GR 153866, February 11, 2005
Commissioner of Internal Revenue versus Pascor Realty
GR 128315, June 29, 1999
National Power Corporation versus Province of Lanao del Sur
GR 96700, November 19, 1996
Ty versus Trampe
GR 117577, December 1, 1995
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