1.
Alcarde JC, Catani RA, Ponchio CO. Colorimetric determination of copper in fertilizers . An. Esc. Super. Agr. Luiz de Queiroz [Internet]. 1971 Jan. 1 [cited 2024 May 19];28:247-55. Available from: https://www.revistas.usp.br/aesalq/article/view/38954