| 1 | Leather Technology, Dr. Ahmet TOPTAŞ, 1993, İstanbul. |
| 2 | Control Methods in Leather Industry, Dr. İsmet HAKIMOĞLU, Leather Research Institute Publications 1990, Pendik / İstanbul. |
| 3 | Basic Information on Leather working, Prof.Dr.Cahit ÖNCÜ, Ankara University, Faculty of Agriculture, 1968, Ankara. |