Nolasco, Estela Moraes, et al. “Combined Toxicity of Methylparaben and Propylparaben in Artemia Salina and Allium Cepa Applying Experimental Design”. Orbital: The Electronic Journal of Chemistry, vol. 15, no. 3, Oct. 2023, pp. 153-62, https://doi.org/10.17807/orbital.v15i3.17993.