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"S&TD." Fullformexpand.com, https://www.fullformexpand.com/std/730519. Accessed 7 Jan. 2026.
Fullformexpand.com, 2026. "S&TD." Accessed January 7, 2026. https://www.fullformexpand.com/std/730519.
"S&TD." (n.d.). Fullformexpand.com. Retrieved January 7, 2026, from https://www.fullformexpand.com/std/730519.
S&TD. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/std/730519 (Accessed: 7 January 2026).