Interview with Jonathan Klein, « Dog Trainer Jonathan Klein Talks About Dog Food Truck Tour In LA », CBS Local, (consulté le ) : « ...(reward-based training)... rather than punishing them ... teaching them that the behavior that we want them to do, there's something in it for them... »
Bailey et Gillaspy, « Operant psychology goes to the fair: Marian and Keller Breland in the popular press, 1947-1966 », The Behavior Analyst, vol. 28, no 2, , p. 143–159 (PMID22478446, PMCID2755380, DOI10.1007/BF03392110)
Forthman et Ogden, « The role of applied behavior analysis in zoo management: Today and tomorrow », Journal of Applied Behavior Analysis, vol. 25, no 3, , p. 647–652 (PMID16795790, PMCID1279745, DOI10.1901/jaba.1992.25-647)
Bailey et Gillaspy, « Operant psychology goes to the fair: Marian and Keller Breland in the popular press, 1947-1966 », The Behavior Analyst, vol. 28, no 2, , p. 143–159 (PMID22478446, PMCID2755380, DOI10.1007/BF03392110)
Forthman et Ogden, « The role of applied behavior analysis in zoo management: Today and tomorrow », Journal of Applied Behavior Analysis, vol. 25, no 3, , p. 647–652 (PMID16795790, PMCID1279745, DOI10.1901/jaba.1992.25-647)
Linda DiProperzio, « The Power of Positive Dog Training - Jonathan Klein dog behaviorist », Parents Magazine, (consulté le ) : « ...The most common problem we see is the pet acting up because it's not getting the same attention it was used to getting," Klein explains. ... »