(3GdaQROb(B: (3MjGJI hTYQI (B/ s - (3ceGd GHheUdMs; (3GMeO GdGScfOQis; (3GHhGdaQL GdGUagGfi(B: (3Ydi Hf GdMSjf Hf eMeO Hf GdgjKe YHOGdQMef Hf eQhGf GdHZOGOis ([S.N] : (3GdecJHI GdMOjKI , s, 1987)
Keywords: (3GdTYQ GdYQHis; (3OhGhjf hbUGFOs; (3GdTYQGAs; (3GdaQRObs