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"ETCF." Fullformexpand.com, https://www.fullformexpand.com/etcf/370568. Accessed 19 Nov. 2025.
Fullformexpand.com, 2025. "ETCF." Accessed November 19, 2025. https://www.fullformexpand.com/etcf/370568.
"ETCF." (n.d.). Fullformexpand.com. Retrieved November 19, 2025, from https://www.fullformexpand.com/etcf/370568.
ETCF. (2025). Fullformexpand.com. Available at: https://www.fullformexpand.com/etcf/370568 (Accessed: 19 November 2025).