(3MOhO adSWjf(B: (3OQGSI JMdjdjI dhKGFb GdGfJOGH (B/ s - (3eMeO eMehO GdOjHs ([S.N] : (3eYgO GdHMhK hGdOQGSGJ GdYQHjI , s, 1979)
Keywords: (3GdYUQ GdMOjKs; (3adSWjfs; (3GdJGQjNs; (3GdMOhO GdSjGSjIs; (3GdGMJdGd GdHQjWGfis; (3GdMOhO GdLZQGajIs