Hatamian , Reza, azad, naser, Naami , Abdullah. “Designing a profitability model for the end user from the perspective of technology entrepreneurs with a mixed method in the Iranian software industry.” Roshd -e- Fanavari, vol. 17, no. 68, 2021, pp. 53-60. 10.52547/jstpi.20971.17.68.53