@article{
  author = {mansoury, mehdi, mirabi, vahid reza, shabghou monsef, seyed mahmoud},
  title = {Designing and testing the product portfolio model with the consumer behavior approach in the service industry of free specialized higher education},
  journal = {Educational Administration Research},
  year = {2021},
  volume = {12},
  issue = {47},
  pages = {81-98},
  doi = {},
  url = {https://sanad.iau.ir/fa/Article/1113031}
}