Check this guide to learn how to properly cite images from sources like Microsoft Word, PowerPoint, Pixabay, Flickr, Shutterstock, among others, according to license requirements. Includes examples of figures with and without attribution.

ProQuest Dissertations & Theses (PQDT) Global is the world's most comprehensive collection of dissertations and theses from around the world, offering millions of works from thousands of universities. Each year hundreds of thousands of works are added. Full-text coverage spans from 1743 to the present, with citation coverage dating back to 1637.

Contains over 1,100 journals, including over 200 gold open access journals, and 400 society partners. Allows full text access to multidisciplinary publications and articles.

This database contains over 7,000 newspapers and magazines from over 120 countries, in more 60 languages.

Scielo - The Scientific Electronic Library Online - SciELO is an electronic library that covers a selected collection of Brazilian scientific journals.

The online catalog allows users to quickly find the different bibliographic resources available in the libraries of the Universidad Ana G. Méndez.

Database with free access to doctoral theses.

The UNESCO Thesaurus is a controlled and structured list of terms used in subject analysis and retrieval of documents and publications in the fields of education, culture, natural sciences, social and human sciences, communication and information.