Which example is not considered a reference material? online encyclopedias
dictionaries
novels
nonfiction books

A novel cannot be used as reference material because it is based on fiction and not facts. The only exception to this rule is if the novel is being referred to in a work of literature.

However, as far as research is concerned, referenced information must be culled from verifiable facts. The quality of the source of materials referenced in a research work determines the quality of the research itself.

Besides those cited in the options above, the most appropriate types of research references (in order of importance) are:

For more information about appropriate types of reference materials, see the link below:

link

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