TY  - JOUR
AU  - shahamat nejad, mina
AU  - ziyae, babak
AU  - Ashrafi, Majid 
AU  - Azma, Fereydoon 
TI  - The concept of Urban Entrepreneurship with  grounded Theory aproach  (case study:Tehran city) 
JO  - Modiriat-e- farda
VL  - 19
IS  - 63
SP  - 123
EP  - 144
PY  - 2020
DO  - 
ER  -