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"ATBU." Fullformexpand.com, https://www.fullformexpand.com/atbu/27587. Accessed 8 Jan. 2026.
Fullformexpand.com, 2026. "ATBU." Accessed January 8, 2026. https://www.fullformexpand.com/atbu/27587.
"ATBU." (n.d.). Fullformexpand.com. Retrieved January 8, 2026, from https://www.fullformexpand.com/atbu/27587.
ATBU. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/atbu/27587 (Accessed: 8 January 2026).