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books, CDs: 50Languages: 56: 56 web: free audio, apps and downloads, sell optional books Colloquial by Routledge: 56: 1 (English) physical media: sell books and CDs Central Institute of Indian Languages: 47: 1 (English) physical media: sell books Duolingo: 43: 25 application or web: freemium with all learning features free Foreign Service ...
Busuu was founded in May 2008 by Bernhard Niesner and Adrian Hilti. The company launched with a free version of its website and opened its first office in Madrid.In 2009, Premium membership was introduced to access to all features on the platform and in 2010, the first Busuu mobile app was launched.
Growth of the eight largest Wikibooks sites (by language), July 2003–January 2010. Wikibooks (previously called Wikimedia Free Textbook Project and Wikimedia-Textbooks) is a wiki-based Wikimedia project hosted by the Wikimedia Foundation for the creation of free content digital textbooks and annotated texts that anyone can edit.
Older PDF files are supported by almost all modern e-book readers, tablets and smartphones. Newer PDF files may not display properly on older e-readers, may not open, or may crash them. However, PDF reflow based on Tagged PDF, as opposed to re-flow based on the actual sequence of objects in the content-stream, is not yet commonly supported on ...
Digital textbooks are a major component of technology-based education reform. They may serve as the texts for a traditional face-to-face class, an online course or degree, or massive open online courses (MOOCs). As with physical textbooks, digital textbooks can be either rented for a term or purchased for lifetime access.
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Under this brand are also books about the grammar of a variety of foreign languages. The first Michaelis dictionary was created by the end of the 19th century by the German lexicographer Henriette Michaelis in a partnership with her sister Carolina Michaelis de Vasconcelos. [ 1 ]
The Dicionário Houaiss da Língua Portuguesa (Houaiss Dictionary of the Portuguese Language) is a major reference dictionary for the Portuguese language, edited by Brazilian writer Antônio Houaiss. The dictionary was composed by a team of two hundred lexicographers from several countries. The project started in 1986 and was finished in 2000 ...