Miura, A. (2012). Human behavior with blogs. In Z. Yan (Ed.), Encyclopedia of cyber behavior (pp. 157-163). IGI Global. https://doi.org/10.4018/978-1-4666-0315-8
What is a DOI?
Some library databases, such as Academic Search Ultimate and APA PsycInfo, provide a digital object identifier (DOI) for individual e-books. A DOI is a unique identifier for an online work. In the database record for an e-book, you will see an element that looks like this, which you should include at the end of your APA reference, preceded by "https://doi.org/":
This link will allow a reader to link to doi.org for more information about the e-book.
Smith, A. J. (2001). Child development. In B. Strickland (Ed.), The Gale encyclopedia of psychology (pp. 115-116). Gale.
See Publication Manual, 10.3.