Rimmer, K.
, Wood, L.
and Lippa, K.
(2012),
DSQAP Exercise B Report, Dietary Supplement Laboratory Quality Assurance Program Information, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=910853, http://www.nist.gov/mml/analytical/dsqaprogram.cfm
(Accessed December 5, 2024)