Rambe, F. R., V. Pramananda, T. R. F. Sinuhaji, H. P. Sura, M. R. Ananda, and K. Hadinatan. “Synthesis and Application of Activated Carbon from Oil Palm Fronds Biomass for One-Step Glycerol Purification”. Science & Technology Asia, vol. 31, no. 2, June 2026, pp. 172-81, doi:10.70730/sta.v31i2.262203.