Wither, James, and Sam Mullins. Combating Transnational Terrorism. Sofia: Procon Ltd., 2016.

Mullins, Sam. "Countering Violent Extremism." In Combating Transnational Terrorism, 199-216. Sofia: Procon, 2016.

Wither, James K., and Sam Mullins. "Foreword." In Combating Transnational Terrorism, vii-x. Sofia: Procon Ltd., 2016.

Mullins, Sam. "Jihadist Foreign Fighters  and ?Lone Wolf? Terrorism." In Combating Transnational Terrorism, 115-130. Sofia: Procon, 2016.

Mullins, Sam, James K. Wither, and Steven R. Monaco. "Terrorism and Crime." In Combating Transnational Terrorism, 67-84. Sofia: Procon, 2016.

Mullins, Sam, and James K. Wither. "Terrorism and Organized Crime." Connections: The Quarterly Journal 15, no. 3 (2016): 65-82.

Mullins, Sam. ?Home-Grown? Jihad: Understanding Islamist Terrorism in the US and UK. London: Imperial College Press, 2015.

Mullins, Sam. Home-Grown? Jihad: Understanding Islamist Terrorism in the US and UK. London: Imperial College Press, 2015.

Mullins, Sam. "Foreign Fighters in Syria: Tracking the Trends and Assessing the Threat." Per Concordiam 5, no. 3 (2014): 36-43.

Mullins, Sam. "Rehabilitation of Islamist terrorists: Lessons from Criminology." Dynamics of Asymmetric Conflict 3, no. 3 (2010): 162-93.

Mullins, Sam. "Parallels Between Crime and Terrorism: A Social-Psychological Perspective." Studies in Conflict and Terrorism 32, no. 9 (2009): 811-30.