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Fullformexpand.com, 2026. "GCD." Accessed January 14, 2026. https://www.fullformexpand.com/gcd/598089.
"GCD." (n.d.). Fullformexpand.com. Retrieved January 14, 2026, from https://www.fullformexpand.com/gcd/598089.
GCD. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/gcd/598089 (Accessed: 14 January 2026).