ಟೆಂಪ್ಲೇಟು:SIBrochure8th
(ಟೆಂಪ್ಲೇಟು:SIbrochure8th ಇಂದ ಪುನರ್ನಿರ್ದೇಶಿತ)
International Bureau of Weights and Measures (2006), The International System of Units (SI) (PDF) (8th ed.), ISBN 92-822-2213-6, archived (PDF) from the original on 2021-06-04, retrieved 2021-12-16
