Ежегодный отчет Lucent Technologies, 2006. www.lucent.com. Более детальная информация о самостоятельном обучении и его влиянии на результат см. Andrew B. Artis and Eric G. Harris. Self-Directed Learning and Sales Force Performance: An Integrated Framework. Journal of Personal Selling & Sales Management 27 (зима 2007). С. 9–24; Mark P. Leach, Annie H. Liu, and Wesley J. Johnston. The Role of Self-Regulation Training in Developing the Motivation Management Capabilities of Salespeople. Journal of Personal Selling & Sales Management, 25 (лето 2005). С. 269–281; Brad Huisken. How Do I Set Up a Productivity Improvement Program? Jewelers Circular Keystone (JCK) 178 (октябрь 2007). С. 140.