*[https://www.sciencedirect.com/science/article/abs/pii/S0191886999001592 ''Identifying components of type-A behaviour: “toxic” and “non-toxic” achieving''], ''Personality and Individual Differences'', Volume 28, Issue 6, 1 June 2000, Pages 1093-1105 | *[https://www.sciencedirect.com/science/article/abs/pii/S0191886999001592 ''Identifying components of type-A behaviour: “toxic” and “non-toxic” achieving''], ''Personality and Individual Differences'', Volume 28, Issue 6, 1 June 2000, Pages 1093-1105 |