(3GdVdGdI HYO GdgOi s (3CSHGHgG hYdGLgG s - (3GdLGQ Gddg ,YHOGddg Hf LGQ Gddgs; (3GdSOMGf ,YHO GdYRjR Hf eMeO Hf YHO Gddg s ([(3O(B.(3e(B] :s [(3O(B.(3f(B] (3,s, 1992)
Keywords: (3GdcHGFQ s; (3GdhYXs; (3GdeYGUj hGdPfhHs