Hornik, Robert2023-05-222023-05-222002-01-012020-11-10https://repository.upenn.edu/handle/20.500.14332/2476Robert Hornik, “Some Complementary Ideas about Social Change” Social Marketing Quarterly. 8(2):11-14. Copyright © [2002]. Reprinted by permission of SAGE PublicationsCommunicationSocial and Behavioral SciencesArticle