(3MdbGJ GdLhOI(B: (3JYHjQ GfWHGYGJ GdGaQGO ai GdYed (B/ s - (3hdjGe d(B. (3ehQs; (3gQjJ ehQs; (3Rjf GdYGHOjf YHOGdQMef GdMaXis ([S.N] : (3eYgO GdGOGQI GdYGeI ddHMhK , s, 1991)
Keywords: (3LhOI GdGfJGLs; (3JNWjW GfJGLs; (3eQGbHI GdGfJGLs