Zamanimoghadam, Afsaneh, Hadavand, Saeed, Taghipoorzahir, Ali. Designing and explaining the professional development model of senior managers of Iran's telecommunications industry  Case study: companies MCI, Irancell, Rightel.  Quarterly Journal of Training and Development of Human Resources. 2021;8(28):194-217. 10.52547/istd.31250.8.28.194