References:

International System of Units - Wikipedia

https://en.wikipedia.org/wiki/International_System_of_Units

Metric System - Wikipedia

https://en.wikipedia.org/wiki/Metric_system

International Bureau on Weights and Measures - Wikipedia

https://en.wikipedia.org/wiki/International_Bureau_of_Weights_and_Measures

Base Unit - Wikipedia

https://en.wikipedia.org/wiki/SI_base_unit

Derived Unit - Wikipedia

https://en.wikipedia.org/wiki/SI_derived_unit

Second - Wikipedia

https://en.wikipedia.org/wiki/Second

Meter - Wikipedia

https://en.wikipedia.org/wiki/Metre

2019 Redefinition of the Base Units - Wikipedia

https://en.wikipedia.org/wiki/2019_redefinition_of_the_SI_base_units

Ampere - Wikipedia

https://en.wikipedia.org/wiki/Ampere

Kelvin - Wikipedia

https://en.wikipedia.org/wiki/Kelvin

Boltzmann Constant - Wikipedia

https://en.wikipedia.org/wiki/Boltzmann_constant

Mole - Wikipedia

https://en.wikipedia.org/wiki/Mole_(unit)

Amount of Substance - Wikipedia

https://en.wikipedia.org/wiki/Amount_of_substance

Avogadro Constant - Wikipedia

https://en.wikipedia.org/wiki/Avogadro_constant

Candela - Wikipedia

https://en.wikipedia.org/wiki/Candela

Luminous Intensity - Wikipedia

https://en.wikipedia.org/wiki/Luminous_intensity