How many types of payments are there in international trade?

Types of payments in the International Trade are as follows:

1- Direct Banking Transfer (Advance Payment).

2- Clean Collection.

3- Documentary Credit / Letter of Credit.

4- Documentary Collection.

5- In some few cases, via Standby Letter of Credit or Letter of Guarantee. 

(1) TT or Advance cash

(2)Letter of Credit (L/C)

(3)Escrow

(4)Bills of exchange