(3ehLR ai JGQjN GdRef ef GdGfaLGQ GdYXje Gdi GdKbhH GdShOGA (B/ s - (3ghcfZ, SJjafs; (3eMehO jSs; (3YHOGddg MjOQs ([S.N] : (3GcGOjejG , s, 1990)
Keywords: (3JGQjNs; (3fXQjGJs; (3GdajRjGAs; (3Gdchfs; (3GdJhbjJs