Chartiers Valley Joint Schools v. Allegheny County Board of School Directors , 418 Pa. 520 ( 1965 )
Pennsylvania Federation of Teachers v. School District , 506 Pa. 196 ( 1984 )
COM., STATE ETHICS COM'N v. Baldwin , 498 Pa. 255 ( 1982 )
SLIPPER ROCK SYS. v. Franklin Twp. Dist. , 389 Pa. 435 ( 1957 )