"OK, adj., int.1, n.2, and adv." OED Online. Oxford University Press, December 2021. Web. 4 December 2021.

"OK, adj., int.1, n.2, and adv." OED Online, Oxford University Press, December 2021, www.oed.com/viewdictionaryentry/Entry/130925;jsessionid=F02FEBF995C3A99C76A03876C89E94F6. Accessed 4 December 2021.

"OK, adj., int.1, n.2, and adv.". OED Online. December 2021. Oxford University Press. https://www.oed.com/viewdictionaryentry/Entry/130925;jsessionid=F02FEBF995C3A99C76A03876C89E94F6 (accessed December 04, 2021).