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"KERF." Fullformexpand.com, https://www.fullformexpand.com/kerf/409737. Accessed 16 Jan. 2026.
Fullformexpand.com, 2026. "KERF." Accessed January 16, 2026. https://www.fullformexpand.com/kerf/409737.
"KERF." (n.d.). Fullformexpand.com. Retrieved January 16, 2026, from https://www.fullformexpand.com/kerf/409737.
KERF. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/kerf/409737 (Accessed: 16 January 2026).