(3SjO MLGH(B: (3GdGYeGd GdcGedI (B: (3ai GdbjeI(B. (3GUhGJ fU GdWQjb (B/ s - (3SjO MLGHs ([S.N] : (3OGQ GdacQ ddOQGSGJ hGdfTQ hGdJhRjY , s, 1987)
Keywords: (3GdTYQ GdYQHis; (3GdYUQ GdMOjKs; (3OhGhjf hbUGFOs