Sunday, Nworie Felix. “Chemometrics of Solvent Extraction of Mn(II) and Fe(III) Bis(salicylidene) Ethylenediamine Complexes in Acid Medium”. Journal of Human, Earth, and Future, vol. 1, no. 2, June 2020, pp. 71-77, doi:10.28991/HEF-2020-01-02-03.