Haji Gholam Saryazdi, Ali , Rajabzadeh Ghatari, Ali, Mashayekhi, Alinaghi, hassanzadeh, Alireza. Systematic Literature Review of Crowdfunding.  Roshd -e- Fanavari. 2019;15(57):44-53. doi:10.7508/jstpi.2019.01.005