(3dPI GdfU (B/ s - (3HGQW, OhdGfs; (3aDGO UfYGs; (3GdMSjf SHMGfs ((3GdeZQH (B: s (3OGQ JhHbGd ddfTQ , s, 1973)
Keywords: (3GdGOHs; (3GdHdGZIs