(3GdJMbjb GdLfGFj hegGe GdeMbb aj LQjeI GdbJd (B/ s - (3HOQ GdOjf, YHO GdhgGH eMeO s ([(3ecGf GdfTQ ZjQ eMOO(B] :s [(3GdfGTQ ZjQ eMOO(B](3,s, 1978)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B. s
Keywords: (3LQGFe GdbJd s -- (3bhGfjf hJTQjYGJs -- (3GdSYhOjIs; (3GdJMbjb GdLfGFj s -- (3GdSYhOjIs