Otiman, P.I. et al. (2013) „A Study of Romania’s Territorial Division and Regional Development”, Revista de Cercetare si Interventie Sociala, 43, pp. 80–99. Disponibil la: https://www.rcis.ro/journal/article/view/1234-a-study-of-romanias-territorial-division-and-regional (Data accesării: 6 noiembrie 2026).