J. S. Cullick, “‘Always Be Closing’: Competition and the Discourse of Closure in David Mamet’s Glengarry Glen Ross”, JDTC, vol. 8, no. 2, pp. 23–36, Mar. 1994, Accessed: Jan. 17, 2025. [Online]. Available: https://journals.ku.edu/jdtc/article/view/1896