(3jhe GdOjf h GdMSGH (B/s - (3YjGO, eMeO TcQis ((3HjQhJ (B((3dHfGf(B) :s (3OGQ GdhMOI,s, 1980)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI(B.s
(3O(B. (3LGHQ YUahQ ;s
Keywords: (3GdbQBfs -- (3eHGMK YGeIs; (3GdbQBf, Ydhes