KHATOON, R.; RAI, M. K.; RAI, J. K. Low cost spectro photometric determination of paraquat in environmental and biological sample. Recent Research in Science and Technology, [S. l.], v. 5, n. 2, 2013. Disponível em: https://updatepublishing.com/journal/index.php/rrst/article/view/1012. Acesso em: 6 may. 2024.