Sukmawardani, Yulia, et al. “Application of Online Project-Based Worksheets in the Utilization of Wood Sawdust As Adsorbents in Industri Liquid Waste Treatment”. Orbital: Jurnal Pendidikan Kimia, vol. 8, no. 1, June 2024, pp. 14-26, https://doi.org/10.19109/ojpk.v8i1.21669.