Ekspor Diperketat, Timah Bisa Jadi Bahan Baku Industri Ponsel 2015-05-20 Sorry, this entry is only available in Indonesian. http://finance.detik.com/read/2015/05/19/195628/2919204/4/ekspor-diperketat-timah-bisa-jadi-bahan-baku-industri-ponsel