パイオニアリング
↑ Design: 1234.info / Modified: Darren Dowling. Scouting Resources. scoutingresources.org.uk
↑ "Pioneering Project: Big and small" (PDF)
↑ "Knot Book" (PDF)
↑ "Older Merit Badge Pamphlet". SCOUT - PIONEERING
↑ TRADITIONAL DIAGONAL LASHING - SCOUT PIONEERING
↑ THE SOMEWHAT AMBIGUOUS SHEAR LASHING - SCOUT PIONEERING