Youssef, N.S., A.A. Hanna, A.E. Eid, and E.A.M. EL-Zahany. “Study on the Solvent Extraction of Phosphoric Acid from Phosphate Ore-HCI Digestion Liquor and Pre-Treatment With Amines&Mdash;Part II”. Asian Journal of Chemistry 11, no. 2 (March 30, 2010): 595–605. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/23325.