Penny Simkin/ Janet Whalley/ Ann Keppler/ Janelle Durham/ April Bolding
(2)
Elaine Stillerman/ Penny Simkin (FRW)
(1)
Janet Whalley/ Penny Simkin/ Ann Keppler
(1)
Janet Whalley/ Penny Simkin/ Ann Keppler/ Emma Cristina Montana (TRN)
(1)
Kicki Hansard. Forewords by Penny Simkin and Phyllis Klaus
(1)
Lisa Hanson,Penny (BA Simkin PT Private Practice of Expectant and New Parent Education Seattle),Ruth (ICCE Ancheta Perinatal and Human Sexuality Educator Community Health Centre Milwaukee)
(1)
Penny Simkin/ Janet Whalley/ Ann Keepler/ Janelle Durham/ April Bolding
(1)
Penny Simkin/ Janet Whalley/ Ann Keppler/ Janelle Durham
(1)
Penny Simkin、Lisa Hanson、and Ruth Ancheta
(1)