Desfitri, E.R., Desmiarti, R., Permata, A.R. and Elizarni, E. 2024. Optimization of Gambier Industry Wastewater Treatment Plant (WWTP) Performance: a Systematic Approach for Environmental Sustainability. Journal of Applied Agricultural Science and Technology. 8, 2 (May 2024), 228-240. DOI:https://doi.org/10.55043/jaast.v8i2.253.