@article{
  author = {Azadi, Mehrdad, ghaneei, mandana},
  title = {The commutativity degree of semigroup of order p^α q^β},
  journal = {Journal of New Researches in Mathematics},
  year = {2021},
  volume = {6},
  issue = {6},
  pages = {57-62},
  doi = {},
  url = {https://sanad.iau.ir/fa/Article/798169}
}