Liu, Lii-Chyuan. “Different Irrigation Regimes Influence Phytotoxicity of Prometryn to Pigeon Peas [Cajanus Cajan (L.) Millsp.] in Four Soils”. The Journal of Agriculture of the University of Puerto Rico, vol. 68, no. 4, Oct. 1984, pp. 315-21, doi:10.46429/jaupr.v68i4.7298.