Kaloko, Ageng. “Time And Direction Effect of Boron (B) and Silicon (Si) Application on Oil Palm (Elaeis Guineensis) Through Leaves”. AGROLAND The Agricultural Sciences Journal (e-Journal) 4, no. 1 (June 26, 2017): 16-19. Accessed December 19, 2024. http://jurnal.faperta.untad.ac.id/index.php/agroland/article/view/297.