(3fTGI eOf GdYQGb hJWhQgG (B/ s - (3YHOGdQGRb YHGS MSjfs ([S.N] : (3eYgO GdHMhK hGdOQGSGJ GdYQHjI , s, 1973)
Keywords: (3JGQjNs; (3GdYQGbs; (3GdeOfs; (3GdYGde GdGSdGei (B- 1917-640(3es; (3GdGeHQGWhQjI GdYKeGfjI (B(1917-1640(3e(B)s