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"PHY." Fullformexpand.com, https://www.fullformexpand.com/phy/14580. Accessed 26 Nov. 2025.
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"PHY." (n.d.). Fullformexpand.com. Retrieved November 26, 2025, from https://www.fullformexpand.com/phy/14580.
PHY. (2025). Fullformexpand.com. Available at: https://www.fullformexpand.com/phy/14580 (Accessed: 26 November 2025).