(3ebOeI ai Yde GdMGSH (B/ s - (3MSf WGgQ OQIs; (3eMeO cGed GdTQHjfis; (3eMeO eMehO YHOGdZfis ([S.N] : (3fgVI eUQ ddWHGYI hGdfTQ hGdJhRjY , s, 1989)
Keywords: (3GdMGSHGJ GdGdcJQhfjIs