1. Polyorchidism;Adams;South. Med. J.,1972
2. Torsion of the spermatic cord;Amar;Am. Surg.,1967
3. Selective testicular venography in abdominal cryptorchidism;Amin;J. Urol.,1976
4. Developmental Anatomy: A Textbook and Laboratory Manual of Embryology;Arey,1965
5. Urology,1970