Wasito, Hendri, 		Siagian, Defi, AND 		Fareza, Muhamad.
" Free Chlorine Determination in Disinfectant Product using Visible Spectrophotometry based on Prussian Blue Degradation" <em>Acta Pharmaciae Indonesia : Acta Pharm Indo</em> [Online], Volume 9 Number 2 (2 February 2022)