Put both citations in the same set of parentheses, separated by a semicolon: (Smith, 2020; Jones, 2021)
Order the citations alphabetically by the first author’s last name
If citing the same author more than once, list the works in chronological order: (Smith, 2018, 2020)
If one source is a direct quote, include the page number for that source: (Smith, 2020, p. 15; Jones, 2021)
If the authors are part of the sentence, place the year in parentheses after each author name: Smith (2020) and Jones (2021) found that…