So, what is assertivenessn an assertiveness training course

Manylion Llyfryddiaeth
Prif Awdur:	Whitehead, Chrissie
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	San Jose, Calif. Resource Publications c1994.
Pynciau:	Assertiveness (Psychology) > Problems, exercises, etc. Educational foundations.