Signal phrases let your reader know that you are quoting or summarizing from another source. These are some signal phrases you can use that signals to the reader either a quotation or a paraphrase is coming. Be sure to close with your own interpretation of why the information is important and relevant to your topic.
Examples:
experts acknowledge ...
studies show ...
according to ...
adds ...
admits ...
agrees that ...
argues ...
asserts ...
believes ...
claims ...
comments ...
grants ...
illustrates ...
implies ...
insists ...
observes ...
compares ...
notes ...
confirms ...
contends ...
declares ...
points out ...
reasons ...
refutes ...
denies ...
disputes ...
rejects ...
reports ...
responds ...
emphasizes ...
endorses ...
suggests ...
thinks ...
writes ...