Paterson, Randy J. The Assertiveness workbook: How to Express Your Ideas and Stand Up for Yourself at Work and in Relationships / Randy J. Paterson. - Oakland : New Harbinger Publications, 2000. - 216 p. ; 26 cm. ISBN: 9781572242098x საგნობრივი რუბრიკები: ფსიქოლოგია UDC: 159.9 P-32