1. N.K. Nag, S. Ganguly, Establishing a data collection centre for improvised firearms, J. Police Res. Dev. (No. 3) (October–December 1983).
2. M. Jauhari, P. Mahanta, Improvised firearms, J. Police Res. Dev. (No.1) (January–March 1979).
3. J.K. Sinha et al., Unusual improvisation of factory made firearms and misleading investigation, CBI Bull. 11 (4) (April 1994).
4. Sri Lankan shot pistols and ballistics, Forensic Science Division, Government Analysis Department, Colombo;Mendis;Sri Lanka Sci. Justice,1997
5. Some samples of weapons and instruments used as weapon in criminal offences in Turkey;Bulent Uner;Forensic Sci. Int.,2003