Boykin v. State , 818 S.W.2d 782 ( 1991 )
Ray v. State , 515 S.W.2d 664 ( 1974 )
Bryant v. State , 482 S.W.2d 270 ( 1972 )
Thurogood v. State , 87 Tex. Crim. 209 ( 1920 )