Rural Development through Central Places in Siwan: Analyzing the Relationship between Population Distribution and Soil Fertility for Rural Development in Siwan. Journal of Advances and Scholarly Researches in Allied Education, [S. l.], v. 16, n. 6, p. 916–917, 2019. Disponível em: https://ignited.in/index.php/jasrae/article/view/11468. Acesso em: 4 apr. 2026.