Buscadores aristidesvara
- 2. • Revistas científicas
• https://scholar.google.es/
• http://www.redalyc.org/
• https://doaj.org/
• http://www.sciencedirect.com/
• Tesis
• http://search.ndltd.org/
• http://www.tdx.cat/
• Académicas
• http://worldwidescience.org/
• https://eric.ed.gov/?
• http://scienceresearch.com/scienceresearch/