^Histology image:09002loa from Vaughan, Deborah (2002). A Learning System in Histology: CD-ROM and Guide. Oxford University Press. ISBN 978-0195151732. - "Female Reproductive System: mammary gland, pregnancy, duct"
^Histology image:10101lba from Vaughan, Deborah (2002). A Learning System in Histology: CD-ROM and Guide. Oxford University Press. ISBN 978-0195151732. - "Digestive System: Oral Cavity and Teeth parotid gland "