Abstract nouns are nouns that the five senses can not detect. Honesty is like honestly. You cannot see honesty, you can not feel honesty, you cannot see honesty, you can not taste honesty, and you can not hear honesty. So, it is an abstract noun.
Answer:
to search for several sources. to recommend a credible source. to synthesize several sources. to acknowledge where you found a source.
Explanation:
You can give credit to your sources within your text in two different ways: by using a signal phrase or by simply using an in-text citation. Signal phrase: signal phrase lets the reader know, right at the beginning of the sentence, that the information he or she is about to read comes from another source.