Gantt Chart vs. PERT Chart vs. Network Diagram: What's the Difference?
How to Create Project Diagrams on PC | ConceptDraw PROJECT Project Management Software Tool | Business diagrams & Org Charts with ConceptDraw DIAGRAM | Convert Gantt Chart To Pert Chart
PERT Charts | Lucidchart
Gantt chart 101 - Part 5: What makes the Gantt chart different from other project management charts? - Office Timeline blog