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Fullformexpand.com, 2026. "GN-BF." Accessed February 17, 2026. https://www.fullformexpand.com/gn-bf/840888.
"GN-BF." (n.d.). Fullformexpand.com. Retrieved February 17, 2026, from https://www.fullformexpand.com/gn-bf/840888.
GN-BF. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/gn-bf/840888 (Accessed: 17 February 2026).