Budiman, N., Harimu, L., & Rahmanpiu. (2026). Quality Analysis Of Fermented Virgin Coconut Oil (VCO) By Purication Using Silica Slag Nickel By Filtration. Hydrogen: Jurnal Kependidikan Kimia, 14(2). https://doi.org/10.33394/hjkk.v14i2.20189