SALEH AL-ATTAS, AMIRAH. 2010. “Use of ?-Acceptors in Charge-Transfer Complexation of Some Cephalosporins: Chloranilic Acid As a Spectrophotometric Titrant in Non-Aqueous Media”. Asian Journal of Chemistry 19 (7):5269-78. https://asianpubs.org/index.php/ajchem/article/view/13132.