Jika anda ingin mengetahui materi-materi yang diberikan saat OSN Kebumian, and bisa mendownloadnya pada link-link di bawah ini:
http://www.ziddu.com/download/4131652/Astronomi.ppt.html
http://www.ziddu.com/downloadlink/4131651/Atmosfera.ppt
http://www.ziddu.com/downloadlink/4131650/ME-Olimpiade.ppt
http://www.ziddu.com/downloadlink/4131649/ILMUKEBUMIAN.ppt
http://www.ziddu.com/downloadlink/4131648/PIKDTM.ppt
http://www.ziddu.com/downloadlink/4131647/meteorologi.ppt
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