@article{article473,
  title = {Development of User-Defined Extension for the Simulation of Membrane Process in Aspen Hysys},
  author = {AHSAN, M. and SWEENEY, O.M. and HUSSAIN, A.},
  journal = {Sigma Journal of Engineering and Natural Sciences},
  year = {2017},
  volume = {35},
  pages = {35-45},
  doi = {}
}