how would you instantiate each gameobject of a list once?

hey! I have a question, how would you instantiate each gameobject of a list once?
Let's imagine; I have A, B and C, I want to make them each appear randomly but only once so :BCA or ACB
and not : BBC or AAB

here is my code :

for(int i=0; i< myPrefab.Length; i++)
{
if (number < myPrefab.Length)
{
CarteDuJour = myPrefab[Random.Range(0,3)];
Instantiate( CarteDuJour, PointSpawn[0].position, Quaternion.identity);
Debug.Log(myPrefab.Length);
number = number+1;
}

 

Shuffle the list first, then iterate the shuffled list in linear order, just as you would draw from a deck of cards.

 

Oh thanks !