1. Embryology of the eye and its adnexae;Barishak,2001
2. Before we are born: essentials of embryology and birth defects;Moore,1998
3. Prenatal development of the eye and its adnexa;Cook,1994
4. Development of the human eye;Mann,1964
5. Embryology of the eye and its adnexae;Barishak,1992