Logica generala
Stoianovici, Dragan, Dima, Teodor; Marga, Andrei
Logica generala Dragan, Dima, Teodor; Marga, Andrei Stoianovici - Bucuresti EDP 1991
Logica generala Dragan, Dima, Teodor; Marga, Andrei Stoianovici - Bucuresti EDP 1991