(3EOGQI GdJfejI(B:(3eaghegG(B,(3CgOGagG(B,(3hSGFdgGs - (3LGfJ(B. (3LhQL(B.(3a(B.s ((3OGQ GdeYGQas (3GdbGgQIs, 1986)
(3efjQ dHjH ehSi(B/ (3eJQLes
Keywords: (3GdJfejI (B- (3GOGQI s; (3Ydhe GLJeGYjI s