Commonwealth v. Thomas , 522 Pa. 256 ( 1989 )
Mills v. Maryland , 108 S. Ct. 1860 ( 1988 )
Commonwealth v. Pursell , 555 Pa. 233 ( 1999 )
Commonwealth v. Morris , 546 Pa. 296 ( 1996 )
Commonwealth v. Banks , 540 Pa. 143 ( 1995 )