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"O3C." Fullformexpand.com, https://www.fullformexpand.com/o3c/904378. Accessed 5 Jan. 2026.
Fullformexpand.com, 2026. "O3C." Accessed January 5, 2026. https://www.fullformexpand.com/o3c/904378.
"O3C." (n.d.). Fullformexpand.com. Retrieved January 5, 2026, from https://www.fullformexpand.com/o3c/904378.
O3C. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/o3c/904378 (Accessed: 5 January 2026).