Gw mau tau 34  "Book Reviews" dari Manajemen sumber daya awak pesawat

36  FAA AC 120-72: http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgAdvisoryCircular.nsf/0/3e5ec461ecf6f5e886256b4300703ad1/$FILE/AC%20120-72.pdf

37  U.S. Air Force Safety Center, 2003: https://web.archive.org/web/20030624092721/http://www.af.mil/factsheets/factsheet.asp?fsID=153

38  Air Force MRM: "Archived copy"the original. Retrieved February 21, 2009

39  STCW Including 2010 Manila Amendments, 2017 Edition. Published by the International Maritime Organization ISBN 9789280116359 Pages 104 and 145