(3GdagQS GdhVYi(B: (3ddeNWhWGJ GdaGQSjI GdeRjfI HGdUhQ (B/ s - (3KQhJ YcGTIs; (3fUQGddg eHTQ GdWQGRis ([S.N] : (3eWHYI OGQ GdcJH , s, 1986)
Keywords: (3GdeNWhWGJs; (3GdaQSs; (3GdRNQaIs; (3GdJUhjQs