@article{
  author = {Mohammadi, Shahab, Farshbaf Zinati, Reza, Razfar, MohammadReza},
  title = {Optimizing Surface Roughness of Nylon6/CaCO3 Nano-Composites Using Harmony Search Algorithm},
  journal = {journal of Artificial Intelligence in Electrical Engineering},
  year = {2017},
  volume = {6},
  number = {21},
  pages = {49-54},
  doi = {}
}