(3MJi dG fNOY (B/ s - (3YHOGdhGOhO GHQGgje TdHis ([S.N] : (3OGQ GdTQhb , s, 1991)
Keywords: (3GdGSdGes; (3GdGSdGe hGdeLJeYs; (3GdGSdGe hGdGUdGM GdGLJeGYis