Nurlaelah et al. 2026. Application of Value Stream Mapping as a Lean Construction Tool in Precast Façade Installation: A Case Study of the “XYZ” Apartment Project in Jakarta, Indonesia. Engineering And Technology Journal. 11, 02 (Feb. 2026), 9056–9060. DOI:https://doi.org/10.47191/etj/v11i02.31.