(3bhGYO GddZI GdYQHjI L(B1 (3ddUa GdJGSYs - (3Gd(B^(3GehSi(B. (3fgGOs ((3hRGQI GdJQHjI h GdJYdjes (3YYeGfs, 1991)
Keywords: (3bhGYO GddZI GdYQHjIs; (3GdfMhs; (3GdUQas