Karelius, K. et al. 2020. Pemurnian Asap Cair Hasil Torefaksi Cangkang Sawit dengan Cara Destilasi dan Filtrasi dengan Arang Aktif: Purification of Liquid Smoke from Torrefaction of Palm Oil by Distillation and Filtration with Activated Charcoal. Jurnal Jejaring Matematika dan Sains. 2, 2 (Dec. 2020), 61–64. DOI:https://doi.org/10.36873/jjms.2020.v2.i2.407.