Al-Sabbagh B, Abdulrazzaq NN. Measuring Dyes Concentration Using a Low-Cost Visible-Light Spectrophotometer. IJCPE [Internet]. 2022 Jun. 30 [cited 2024 May 19];23(2):27-33. Available from: https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/861