SHANKHI, K. P. Relationship between systems and environment in the context of global-warming. Journal of Agriculture and Environment, [S. l.], v. 8, p. 55–61, 2007. DOI: 10.3126/aej.v8i0.727. Disponível em: https://nepjol.info/index.php/AEJ/article/view/727. Acesso em: 19 oct. 2024.