Pratiknyo, Yuwono Budi and Hadi, Wahyono and Kusuma, Maritha Nilam (2020) Alternative Optimization Of Ash Waste Utilization Of Steam Power Plant (2 X 1,000 MW) In Terms Of Production, Environmental And Economic Aspects. Pollution Research Paper, 39 (1). pp. 33-36. ISSN 0257-8050