Rosenfeld, Arthur H. “SOME JAVA P. O. J. SEEDLINGS IN TUCUMAN AND PORTO RICO”. The Journal of Agriculture of the University of Puerto Rico 8, no. 3 (July 1, 1924): 5–87. Accessed November 26, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/15101.