Iswandi, Iswandi. “Analysis of Contamination of Lead Metal (Pb) and Cadmium (Cd) in Whitening Serum Circulating in Online Stores With Atomic Absorption Spectrophotometry”. AFAMEDIS, vol. 4, no. 1, Mar. 2023, pp. 54-62, doi:10.61609/afamedis.v4i1.70.