Commonwealth v. Hickman , 453 Pa. 427 ( 1973 )
Commonwealth v. Jones , 459 Pa. 62 ( 1974 )
Commonwealth v. Harper , 479 Pa. 42 ( 1978 )
Commonwealth v. McCusker , 448 Pa. 382 ( 1972 )
Commonwealth v. Cain , 471 Pa. 140 ( 1977 )