Fullformexpand.com, 2026. "TOUGH." Accessed April 26, 2026. https://www.fullformexpand.com/tough/transport-of-unsaturated-groundwater-and-heat.
"TOUGH." (n.d.). Fullformexpand.com. Retrieved April 26, 2026, from https://www.fullformexpand.com/tough/transport-of-unsaturated-groundwater-and-heat.
TOUGH. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/tough/transport-of-unsaturated-groundwater-and-heat (Accessed: 26 April 2026).