1. Asahi Newspaper, February 7, 2004.
2. Specific field test for cocaine;Scott;Microgram,1973
3. Modified Scott test for cocaine base or cocaine hydrochloride;Fasanello;Microgram,1986
4. Rapid Testing Methods of Drugs of Abuse Manual for Use by National Narcotics Laboratories,1988
5. An additional screening test for cocaine;Prall;Microgram,1975