“...Instituto de Filosofía (Consejo Superior de Investigaciones Científicas)...”
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“...Instituto de Filosofía....”
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“...Instituto de Filosofía....”
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“...Instituto de Filosofía....”
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“...Universidad del Zulia. Instituto de Filosofía del Derecho "Dr. José M. Delgado Ocando."...”
Available in Fuente Académica Plus.

“...Universidad Nacional de Colombia. Instituto de Filosofía y Letras....”
Full text available from Latin America & Iberia Database: 01/01/2004 to present
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“...Universidad Nacional de Colombia. Instituto de Filosofía y Letras....”
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“...Universidade Federal do Rio Grande do Sul. Instituto de Filosofia....”
Full text available from Health & Medical Collection: 01/01/2014 to present
Full text available from Research Library: 01/01/2014 to present