1. Gaensslen RE (1989) Sourcebook in forensic serology, immunology, and biochemistry. US Dept of Justice NIJ Pub, Rockville, Available online at: http://www.ncjrs.gov/pdffiles1/pr/160880_unit_2.pdf . Accessed 25 Sep 2012
2. Saferstein R (1982–1993) Forensic science handbook. Prentice Hall, Eaglewood Cliffs
3. Mueller B (1928), ljkr den Nachweis eingarocheten Speichels in Tuchern. Duch. 2.Gesamte Gerichtl. Med. 11: 211–224
4. Utz F (1903) Beitrag zum forensischen Nachweise von Blut. Chem-Ztg 27(94):1151–1152
5. Kerrigan S, Phillips WH Jr (2001) Comparison of ELISAs for opiates, methamphetamine, cocaine metabolite, benzodiazepines, phencyclidine, and cannabinoids in whole blood and urine. Clin Chem 47:540–547