Answer:
twenty
Explanation:
Citation is the feminine noun that indicates the act or effect of quoting or referring to something. A citation expresses an idea or opinion of a text of a specific author, and the author must always be identified. When the author is not known, the term "unknown author" is usually inserted along with the quotation.
It is important to remember that in a research paper the references should be used appropriately in moderation. For this reason, this work did not have more than 20% of direct quotations.
