(3ThGgO GdJhVjM hGdJUMjM(B: (3deTcdGJ GdLGeY GdUMjM s - (3fMhj(B. (3LeGd GdOjf eMeO Hf YHO Gddg GdWGFjs ((3YGde GdcJHs (3HjQhJs, 1983)
Keywords: (3GddZI GdYQHjI (B- (3bhGYO s