Levenson, Michael R.; Kiehl, Kent A.; Fitzpatrick, Cory M. (1995). "Assessing Psychopathic Attributes in a Noninstitutionalized Population". Journal of Personality and Social Psychology. 68 (1): 151–152. doi:10.1037/0022-3514.68.1.151. PMID7861311.
Arieti, Silvano (October 1963). "Psychopathic personality: Some Views on Its Psychopathology and Psychodynamics". Comprehensive Psychiatry. 4 (5): 301–303. doi:10.1016/S0010-440X(63)80056-5. PMID14055428.
Vaughn, Michael G.; Edens, John F.; Howard, Matthew O.; Smith, Shannon Toney (July 2009). "An Investigation of Primary and Secondary Psychopathy in a Statewide Sample of Incarcerated Youth". Youth Violence and Juvenile Injustice. 7 (3): 173. doi:10.1177/1541204009333792. S2CID143989190.
Hicks, Brian M.; Markon, Kristian E.; Patrick, Christopher J.; Krueger, Rober F.; Newman, Joseph P. (2004). "Identifying Psychopathy Subtypes on the Basis of Personality Structure". Psychological Assessment. 16 (3): 276–281. doi:10.1037/1040-3590.16.3.276. PMID15456383.
Levenson, Michael R.; Kiehl, Kent A.; Fitzpatrick, Cory M. (1995). "Assessing Psychopathic Attributes in a Noninstitutionalized Population". Journal of Personality and Social Psychology. 68 (1): 151–152. doi:10.1037/0022-3514.68.1.151. PMID7861311.
Arieti, Silvano (October 1963). "Psychopathic personality: Some Views on Its Psychopathology and Psychodynamics". Comprehensive Psychiatry. 4 (5): 301–303. doi:10.1016/S0010-440X(63)80056-5. PMID14055428.
Hicks, Brian M.; Markon, Kristian E.; Patrick, Christopher J.; Krueger, Rober F.; Newman, Joseph P. (2004). "Identifying Psychopathy Subtypes on the Basis of Personality Structure". Psychological Assessment. 16 (3): 276–281. doi:10.1037/1040-3590.16.3.276. PMID15456383.
Vaughn, Michael G.; Edens, John F.; Howard, Matthew O.; Smith, Shannon Toney (July 2009). "An Investigation of Primary and Secondary Psychopathy in a Statewide Sample of Incarcerated Youth". Youth Violence and Juvenile Injustice. 7 (3): 173. doi:10.1177/1541204009333792. S2CID143989190.