Ab Hamid, F.H. and Mohd Asyrul, N.A. 2021. Optimisation of stormwater purification in progressive freeze concentration: Stirring speed and initial concentration. Malaysian Journal of Chemical Engineering & Technology. 4, 1 (May 2021), 8–14. DOI:https://doi.org/10.24191/mjcet.v4i1.12651.