Magzine Name :Gps World, Frequency :Monthly
      Volume No       Year       Issue       Month
       20        2009        11        NOVEMBER
       20        2009        10        OCTOBER
       20        2009        09        SEPTEMBER
       20        2009        08        AUGUST
       20        2009        07        JULY
       20        2009        05        MAY
       20        2009        02        FEBRUARY
       20        2009        01        JANUARY
       19        2008        12        DECEMBER
       19        2008        11        NOVEMBER
       19        2008        10        OCTOBER
       19        2008        08        AUGUST
       19        2008        07        JULY
       19        2008        06        JUNE
       19        2008        05        MAY
       12        2001        12        DECEMBER