"OK, adj., int.1, n.2, and adv." OED Online. Oxford University Press, September 2021. Web. 19 October 2021.

"OK, adj., int.1, n.2, and adv." OED Online, Oxford University Press, September 2021, www.oed.com/viewdictionaryentry/Entry/130925;jsessionid=0191D4A0B48242E6A84AE5DF77AA6613. Accessed 19 October 2021.

"OK, adj., int.1, n.2, and adv.". OED Online. September 2021. Oxford University Press. https://www.oed.com/viewdictionaryentry/Entry/130925;jsessionid=0191D4A0B48242E6A84AE5DF77AA6613 (accessed October 19, 2021).