USA Ultimate Manuals: https://usaultimate.org/wp-content/uploads/2020/11/USAU
_TeachingManual.pdf
Gym class ultimate frisbee : https://gymclassultimatefrisbee.com/about/
Ontario Dsic Sports Organization: https://d36m266ykvepgv.cloudfront.net/uploads/media/u3z
o0RYqaM/o/teaching-ultimate-to-grade-7-81.pdf