The author - lvaro Jos%C3%A9 Ibarra Rivas (Instituci%C3%B3n Educativa Santa Fe Santiago de Cali - Colombia) - is not found.
lvaro Jos%C3%A9 Ibarra Rivas (Instituci%C3%B3n Educativa Santa Fe Santiago de Cali - Colombia) The author - lvaro Jos%C3%A9 Ibarra Rivas (Instituci%C3%B3n Educativa Santa Fe Santiago de Cali - Colombia) - is not found.
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