1. Process for Producing Synthetic Petroleum Jelly;Abhari,2010
2. A tree-bark and its pilgrimage through history;Aronson;Rhode Island Medical Journal,2013
3. Naphthalene derivatives;Booth,2005
4. Veterinary Technician;Bough,2006
5. Use of bitumen in medicine throughout the ages;Bourée;Histoire des Sciences Medicales,2011