URL:https://www.researchgate.net/publication/376576973/figure/fig2/AS:11431281212675400@1702735904984/Work-Breakdown-Structure-WBS-Source-Researcher-Property-The-notion-of-Work-Breakdown.png
掲載元:https://www.researchgate.net/figure/Work-Breakdown-Structure-WBS-Source-Researcher-Property-The-notion-of-Work-Breakdown_fig2_376576973