Nuryanto, E., and D. R. Askasari. “UTILIZATION OF CANDLENUT SHELL CHARCOAL (Aleurites Moluccana (L.) Willd.) AS ADSORBEN ON REFINERY OF CRUDE PALM OIL (CPO)”. Jurnal Penelitian Kelapa Sawit, Vol. 26, no. 2, Aug. 2018, pp. 49-58, doi:10.22302/iopri.jur.jpks.v26i2.37.