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"QBU." Fullformexpand.com, https://www.fullformexpand.com/qbu/170271. Accessed 5 Jan. 2026.
Fullformexpand.com, 2026. "QBU." Accessed January 5, 2026. https://www.fullformexpand.com/qbu/170271.
"QBU." (n.d.). Fullformexpand.com. Retrieved January 5, 2026, from https://www.fullformexpand.com/qbu/170271.
QBU. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/qbu/170271 (Accessed: 5 January 2026).