Bazotti, Angelita, Louise Ronconi de Nazareno, and Anael Pinheiro de Ulhôa Cintra. “An Essay on Paraná state’s Rural Families Based on 1992, 1998, 2005 and 2007 Pnad Surveys”. Revista Paranaense de Desenvolvimento - RPD, no. 117 (January 23, 2012): 123–145. Accessed October 12, 2025. https://ipardes.emnuvens.com.br/revistaparanaense/article/view/74.