ATHITHAN, S; RAMANATHAN, N. Chemical speciation of sedimentary nitrogen and phosphorous in integrated fish/pig farming system. Indian Journal of Fisheries, India, v. 56, n. 2, p. 107–114, 2011. Disponível em: https://epubs.icar.org.in/index.php/IJF/article/view/6832. Acesso em: 17 jun. 2026.