The term that describes materials created in an electronic format is:
- **Digital sources**
Digital sources refer to materials that exist in a non-physical form, such as electronic documents, e-books, online articles, multimedia files, etc. These materials can be accessed and distributed through electronic devices like computers, tablets, and smartphones. The term "digital" indicates that the content is stored and transmitted in binary code, represented as a series of ones and zeros, allowing for easy replication and dissemination over electronic networks.
By contrast, "web sources" and "online sources" may refer to materials specifically found on the internet, while "credible sources" denote reliable and trustworthy information regardless of the format. However, when identifying materials specifically created in an electronic format, "digital sources" is the most appropriate term.