(3ePGgH GdMcGe ai fhGRd GdGMcGe (B/ s - (3GdbGViYjGV (B, (3YjGV GHf ehSi eMs ([S.N] : (3OGQ GdZQH GdGSdGei , s, 1990)
Keywords: (3GdTQjYI GdGSdGejIs; (3GdePgH GdeGdcis