(3GdejRGfjI h GdVQGFH GdeHGTQI aj GdYQGb (B/s - (3YHO GdYGd GdUHcGf(B.s ({(3HZOGO(B} :s {(3eWHYI GdYGfj(B}(3,s, 1967)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdVQGFH GdeHGTQI(B.s