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On Blogger since April 2009
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My blogs
OPTICA
EL SONIDO
PRINCIPIOS DE CONSERVACIÓN
ISAAC NEWTON, SIEMPRE VIGENTE
Blogs I follow
ISAAC NEWTON, SIEMPRE VIGENTE
OPTICA
PRINCIPIOS DE CONSERVACIÓN
About me
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Male
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Education
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Docente
Location
Sincelejo,
Sucre,
Colombia