(3bGd GdfGS h de Cbd aj Mce YHO GdfGUQ (B: s (3BQGA GdeYGUQjf aj LeGd YHO GdfGUQ h Mceg (B/ s - (3GdJdeSGfj, YeQs ((3GdbGgQI (B:s (3ecJHI GdEYJUGe,s, 1985)
Keywords: (3JGQjN eUQs; (3GdJGQjN GdSjGSjs