Hello, I have been stuck on an SQL statement I have to write for class for extra credit. I have been trying to figure it out for literally hours. If anyone could take a look at what I have so far and could give me some clues it would be much appreciated.

The question is:
"Find the names of the projects whose participants earn exactly the same amount as their project leader."

Here is my SQL so far:
SELECT P.Name
FROM Employee as E, Project as P, WorksOn as W
WHERE P.Leader = E.eID AND W.Emp = E.eID AND W.ProjID = P.pID
GROUP BY P.Name

***I can't figure out how to code the part where you figure out if employees and leaders have the same salary!****

Here is the Relational Schema:
Employee (eID, Name, Age, Address, Salary, Manager)
Manager is a foreign key, it refers to Employee (eID)
Project (pID, Name, Location, SecurityLevel, Leader)
Leader is a foreign key, it refers to Employee (eID)
Supervises(Supervisor, Supervisee, StartDate)
Supervisor is a foreign key, it refers to Employee (eID)
Supervisee is a foreign key, it refers to Employee (eID)
WorksOn (Emp, ProjID, StartDate)
Emp is a foreign key, it refers to Employee (eID)
ProjID is a foreign key, it refers to Project(pID)