(3Pe GdZVH hGdMbO hGdMSO(B\c(3CHi MGeO eMeO Hf eMeO GdZRGdis - (3GdZRGdi, CHi MGeO eMeO Hf eMeOs ({(3O(B. (3e (B: (3O(B. (3f(B}\c1997s, 1997)
(3GdeMJhjGJ (B: (3HjGf YdGL GdZVH(B--(3HjGf aVjdI GdMde(B--(3aVjdI GdQab(B--(3HjGf CSHGH GdMSO(B--(3HjGf GdOhGA GdPi jfai eQV GdMSO(B.....................................(3GdNs
7
Keywords: (3GdESdGes; (3GdJQGK GdESdGeis; (3GdKbGaI GdESdGejIs