True, this is plagiarism. You have used the authors' exact words without proper citation or quotation marks. You also haven't provided the full citation and only gave the title of the source. In addition, you are using the same source multiple times and you should provide the source in each use. To avoid plagiarism, you need to properly cite the source and use quotation marks when using the authors' exact words, or rephrase the ideas in your own words and cite the source.