Sakiyama, Hiroshi, Hidetatsu Inoue, Md.Kudrat-E-Zahan Md.Kudrat-E-Zahan, Shoichi Hueki, Naohisa Tachiya, and Yuzo Nishida. “Stabilization of 5-Aminolevulinic Acid by the zinc(II) Ion in an Aqueous Solution”. European Journal of Chemistry 1, no. 4 (December 22, 2010): 373–376. Accessed April 29, 2024. https://www.eurjchem.com/index.php/eurjchem/article/view/101.