Martinez Ex Rel. Morales v. Bynum , 103 S. Ct. 1838 ( 1983 )
De Leon v. HARLINGEN CONSOL. INDEPENDENT SCH. DIST. , 552 S.W.2d 922 ( 1977 )
Jackson v. Waco Independent School Dist. , 629 S.W.2d 201 ( 1982 )