Moustafa, S. (1989). THE ACOUSTIC PERFORMAN7.E OF EXHAUST SILENCER COMPONENTS AND THE INFLUENCE OF CAR SPEED ON SILENCER PERPORMANCE. test, 3(ASAT Conference 4-6 April 1989 , CAIRO), 255-266. doi: 10.21608/asat.1989.25871
S. M. Moustafa. "THE ACOUSTIC PERFORMAN7.E OF EXHAUST SILENCER COMPONENTS AND THE INFLUENCE OF CAR SPEED ON SILENCER PERPORMANCE". test, 3, ASAT Conference 4-6 April 1989 , CAIRO, 1989, 255-266. doi: 10.21608/asat.1989.25871
Moustafa, S. (1989). 'THE ACOUSTIC PERFORMAN7.E OF EXHAUST SILENCER COMPONENTS AND THE INFLUENCE OF CAR SPEED ON SILENCER PERPORMANCE', test, 3(ASAT Conference 4-6 April 1989 , CAIRO), pp. 255-266. doi: 10.21608/asat.1989.25871
Moustafa, S. THE ACOUSTIC PERFORMAN7.E OF EXHAUST SILENCER COMPONENTS AND THE INFLUENCE OF CAR SPEED ON SILENCER PERPORMANCE. test, 1989; 3(ASAT Conference 4-6 April 1989 , CAIRO): 255-266. doi: 10.21608/asat.1989.25871