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Fullformexpand.com, 2025. "VVIS." Accessed November 29, 2025. https://www.fullformexpand.com/vvis/1000733.
"VVIS." (n.d.). Fullformexpand.com. Retrieved November 29, 2025, from https://www.fullformexpand.com/vvis/1000733.
VVIS. (2025). Fullformexpand.com. Available at: https://www.fullformexpand.com/vvis/1000733 (Accessed: 29 November 2025).