Abdoul-Rachid, Chaibou Yacouba, et al. “Comparative Study of Solvent Extraction of Uranium With Alamine 336 and Aliquat 336: Application to the Uranium-Bearing Solutions of Niger Republic”. European Scientific Journal, ESJ, vol. 14, no. 9, Mar. 2018, p. 76, doi:10.19044/esj.2018.v14n9p76.