      * https://fr.wikiversity.org/wiki/COBOL/Sous-programmes
000001 IDENTIFICATION DIVISION.
000002   PROGRAM-ID. a.
000003 PROCEDURE DIVISION.
000004 prog-a.
000005   CALL "b".
000006   STOP RUN.
000007***********************
000008 IDENTIFICATION DIVISION.
000009   PROGRAM-ID. b.
000010 PROCEDURE DIVISION.
000011 prog-b.
000012   EXIT PROGRAM.
000013 END PROGRAM b.
000014***********************
000015 END PROGRAM a.
