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"X-BAR." Fullformexpand.com, https://www.fullformexpand.com/x-bar/1020846. Accessed 26 Jan. 2026.
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"X-BAR." (n.d.). Fullformexpand.com. Retrieved January 26, 2026, from https://www.fullformexpand.com/x-bar/1020846.
X-BAR. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/x-bar/1020846 (Accessed: 26 January 2026).