Freelon, Deen; McIlwain, Charlton D.; Clark, Meredith D. Beyond the Hashtags (PDF). Center for Media and Social Impact: 9. 2016-02-29 [2018-10-24]. (原始内容存档于2018-10-06) (英语).
Freelon, Deen; McIlwain, Charlton D.; Clark, Meredith D. Beyond the Hashtags (PDF). Center for Media and Social Impact: 9. 2016-02-29 [2018-10-24]. (原始内容存档于2018-10-06) (英语).