Br. Pardede GR, Rangkuti IUP. Potential of Boiler Ash from 30 and 60 Ton/Hour Palm Oil Mills as a Nutrient Source in Palm Plantation. Reswara J. Ris. Ilmu Tek. [Internet]. 2026 Jul. 2 [cited 2026 Oct. 22];4(3):180-9. Available from: https://journal.kalibra.or.id/index.php/reswara/article/view/546