Hariyono, H., and B. Isnawan. “The Effectiveness Of Spraying Nano Bone Ash And Oil Palm Emty Fruit Bunch Ash On Leaf Character Appearance Of Rice Mandel Variety”. Jurnal Ilmiah Multidisiplin Indonesia (JIM-ID), vol. 2, no. 02, July 2023, pp. 70-76, doi:10.58471/esaprom.v2i02.2512.