Hashemi, Hossein, Hamid Jafari, and Mohammad Ali Ahmadian. “The Role of Services and Facilities in Population Sustainability of Rural Settlements (Case Study: The Villages in Central Region of Birjand City)”. Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental 24 (April 8, 2020): e34. Accessed February 12, 2025. https://periodicos.ufsm.br/reget/article/view/43411.