Google Scholar indexes many kinds of scholarly information including journal articles, books and book chapters, conference proceedings, dissertations, teaching materials, etc. GS provides an H5 Index for most journals (H index for the most recent 5 full years) and also offers subject categories, ranking journals listed within each category.. To check a journal's H5 Index follow these steps:
Google Scholar’s strength lies in the fact that it not only indexes journal articles but also books, book chapters and other non-traditional sources such as promotional pages, table of contents pages, course reading lists etc. Caveats:Google Scholar is not as accurate as Scopus since it cannot remove self-citations and may include multiple entries for one work which can inflate results.