Berrebaan, Imane, et al. “Evaluation of Ecotoxicity of Ibuprofen and Paracetamol on the Freshwater Green Microalgae ‘Pseudokirchneriella Subcapitata’”. Engineering And Technology Journal, vol. 2, no. 11, Nov. 2017, pp. 303-9, https://everant.org/index.php/etj/article/view/119.