Lobitos Orvin A., Torculas Kathyleen S., Stanley B. Paler, Jan Albert Alejo U. Parenas, and Lex Aine June D. Tabor. “Optimization of Composite Eco-Blocks Derived From Sawdust Ash and Plastic As an Alternative Aggregate”. Journal of Environmental Impact and Management Policy, vol. 3, no. 02, Feb. 2023, pp. 1-12, doi:10.55529/jeimp.32.1.12.