Reyes, Manuel N., Agripino Pérez, and José Cuevas. 1980. “Detecting Endogenous Growth Regulators on the Sarcotesta, Sclerotesta, Endosperm, and Embryo by Paper Chromatography on Fresh and Old Seeds of Two Papaya Varieties”. The Journal of Agriculture of the University of Puerto Rico 64 (2):164-72. https://doi.org/10.46429/jaupr.v64i2.10229.