mirsondosi, zeinab, aminzadeh, Behnaz. “Regional Equilibrium Analysis Based on the Combined Indices of Core-Periphery Theory and Sustainable Tourism (Case Study: Khorasan-e-Razavi Province).” Hoviatshahr, vol. 14, no. 3, 2020, pp. 89-102. 10.30495/hoviatshahr.2020.16290