1. DENNIS S.M., Hypospadias in Merino lambs, Vet. Rec., 1979, 105, 94-96
2. GILANPOUR H., Perineal hypospadias in a ram, Vet. Rec., 1971, 88, 657-658
3. McFARLAND L.Z., Perineal hypospadias in male lambs, J.A.V.M.A., 1958, 133, 81-82
4. SHARMA A., RYOT K.D., ASHWANI K. G., Indian Vet. J., 2003, 80, 928-930
5. SMITH K.C., BROWN P., PARKINSON T.J., Hypospadias in rams, Vet. Rec., 2006, 158, 789-795