Live amongst the stars

OSN IX

Beberapa Foto OSN IX Sumut, 1-7 Agustus 2010

 

OSN Astronomi

OSN Astronomi

 

OSN Matematika

OSN Matematika

 

OSN Fisika

OSN Fisika

 

OSN Kimia

OSN Kimia

 

OSN  Biologi

OSN Biologi

 

OSN Kebumian

OSN Kebumian

 

OSN Ekonomi

OSN Ekonomi

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