pravilnik o strokovni izobrazbi, izpitih in dovoljenjih za delo članov posadke letal (Uradni list SFRJ, št. 2/80, 31/80, 53/80, 43/81 in 10/85),
Rules on professional education, examinations and permits for the work of members of aircraft crews of (Ur.l. SFRY, no. 2/80, 31/80, 53/80, 43/81 and 10/85),