by Petrov, Oleg V., Hay, Jill, Mastikhin, Igor V., Balcom, Bruce J.
Published in Food research international (01.08.2008)

by Vernon, Ann, Hay, Jill
Published in Elementary School Guidance and Counseling (1988)

by Elise Pascoe, Meryl Constance, Jill Dupleix, Donna Hay
Published in Sydney morning herald (18.06.2002)