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physics education
physics education for elementary, junior high school, vocational school
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Desember 31, 2011
fisika sma Quis Kinematika
Desember 31, 2011
video physics Movement Parabola
Desember 29, 2011
fisikasbe greetings in Happy New Year 2012
Desember 29, 2011
The respiratory organs consist of
Desember 20, 2011
Global Warming
Desember 20, 2011
Doppler Effect
Desember 19, 2011
Dangers of Infrared
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