Ruel M. Tuan, San Miguel, C. C. L., & Florencondia, N. T. (2026). Cost-Benefit Analysis and Life Cycle-Assessment of Rainwater Harvesting in a Commercial Building. International Journal of Progressive Research in Science and Engineering, 7(01), 6–10. https://doi.org/10.65138/ijprse.2026.v7i01.1244