Tuam Tshoj, Is Nrias teb, Nyij Pooj - peb lub teb chaws nyob hauv Asia kev lag luam qe los ntawm Hans-Wilhelm Windhorst, IEC Tus Txheeb Xyuas Cov Txheeb Xyuas
Daim PDF ntawm tsab ntawv ceeb toom tuaj yeem rub tawm los txhawm rau nyem "Download Now" khawm hauv qab daim video.