Commonwealth v. Simala , 434 Pa. 219 ( 1969 )
Commonwealth v. Yount , 1974 Pa. LEXIS 632 ( 1974 )
Commonwealth v. Brantner , 486 Pa. 518 ( 1979 )
Commonwealth v. Goodwin , 460 Pa. 516 ( 1975 )
Miranda v. Arizona , 86 S. Ct. 1602 ( 1966 )