Liu, L. C., and A. Cedeño-Maldonado. “Effects of Fluometuron, Prometryne, Ametryne, and Diuron on Growth of Two Lemna Species”. The Journal of Agriculture of the University of Puerto Rico 58, no. 4 (October 1, 1974): 483–488. Accessed April 26, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/10646.