(3GdOjebQGWjI hMbhb GdGfSGf aj GdhWf GdYQHj (B. /s - (3gdGd , Ydj GdOjf s ([(3Ohf ecGf(B] :s (3eQcR OQGSGJ GdhMOI GdYQHjI ,s, 1986)
Keywords: (3GdhWfs; (3GdGfSGf s; (3GdOjebQGWjI s; (3Mbhb s