Carpenter, K. 1992. Tyrannosaurids (Dinosauria) of Asia and North America. In: Mateer, N. & Chen P. (Eds.). Aspects of Nonmarine Cretaceous Geology. Beijing: China Ocean Press Pp. 250-268. (download here)
Currie, P.J., Hurum, J.H., and Sabath, K. 2003. Skull structure and evolution in tyrannosaurid dinosaurs. Acta Palaeontologica Polonica 48(2): 227–234. (download hereDiarkibkan 2007-06-12 di Wayback Machine)
Hurum, J.H. & Sabath, K. 2003. Giant theropod dinosaurs from Asia and North America: Skulls of Tarbosaurus bataar and Tyrannosaurus rex compared. Acta Palaeontologica Polonica 48(2): 161–190. (download hereDiarkibkan 2007-06-12 di Wayback Machine)
Currie, P.J. 2003. Cranial anatomy of tyrannosaurid dinosaurs from the Late Cretaceous of Alberta, Canada. Acta Palaeontologica Polonica 48(2): 191–226. (download hereDiarkibkan 2007-06-12 di Wayback Machine)
Currie, P.J., Hurum, J.H., and Sabath, K. 2003. Skull structure and evolution in tyrannosaurid dinosaurs. Acta Palaeontologica Polonica 48(2): 227–234. (download hereDiarkibkan 2007-06-12 di Wayback Machine)
Hurum, J.H. & Sabath, K. 2003. Giant theropod dinosaurs from Asia and North America: Skulls of Tarbosaurus bataar and Tyrannosaurus rex compared. Acta Palaeontologica Polonica 48(2): 161–190. (download hereDiarkibkan 2007-06-12 di Wayback Machine)
Currie, P.J. 2003. Cranial anatomy of tyrannosaurid dinosaurs from the Late Cretaceous of Alberta, Canada. Acta Palaeontologica Polonica 48(2): 191–226. (download hereDiarkibkan 2007-06-12 di Wayback Machine)