1. Observations on Certain Parts of the Animal Economy;Hunter,1786
2. Developmental Anatomy;Arey,1940
3. The embryologic development and descent of the testis in relation to congenital hernia;Burton;Surg. Gynecol. Obstet.,1958
4. A study of the development and structural relationships of the testis and gubernaculum;Lemeh;Surg. Gynecol. Obstet. Feb,1960
5. Undescended testicle;Sonneland;Surg. Gynecol. Obstet.,1925