References:
A&C Black – Assertive Yourself – 2009
Alberti & Emmons – Your Perfect Right: Assertiveness and Equality in Your Life and Relationships – 2001
Bishop, S. – Develop Your Assertiveness – 2006
Bower & Bower – Asserting Yourself: A Practical Guide for Positive Change – 1991
drug & alcohol.com – Assertiveness Training in Addiction – 2018
Lloyd, S – Developing Positive Assertiveness: Practical Techniques for Personal Success – 2001
Michael Argyle – Social Situations – 1981
Pfeifer, R. – Relationships: Assertiveness Skills – 2010
Smith, M. J. – When I Say No, I Feel Guilty – 1975