1. Tattooing of the cornea;Leigh,1965
2. The conjunctiva, cornea, and sclera;Roper-Hall,1989
3. Corneal tattooing to reduce glare in cases of traumatic iris loss;Reed;Cornea,1994
4. The Merck index-an encyclopedia of chemicals, drugs, and biologicals;Budavari,1996
5. Chemical hazards of the workplace;Hathaway,1991