Han, Seungwoo, TaeHoon Hong, Gwangho Kim, and Sangyoub Lee. 2011. “Technical Comparisons of Simulation-Based Productivity Prediction Methodologies by Means of Estimation Tools Focusing on Conventional Earthmovings”. Journal of Civil Engineering and Management 17 (2):265-77. https://doi.org/10.3846/13923730.2011.574381.