E. Nuryanto and D. R. Askasari, “UTILIZATION OF CANDLENUT SHELL CHARCOAL (Aleurites moluccana (L.) Willd.) AS ADSORBEN ON REFINERY OF CRUDE PALM OIL (CPO)”, J. Penelitian Kelapa Sawit, vol. 26, no. 2, pp. 49-58, Aug. 2018.