Introduced in the early 1950s, the four Ps were called the marketing mix, meaning that a marketing plan is a mix of these four components
Gagnon, C. (2017, November 12). The 4 Ps of Marketing. OER Commons. Retrieved March 18, 2021, from https://www.oercommons.org/authoring/25583-the-4-ps-of-marketing.
