Koch, Ruth N. Speaking the truth in love : how to be an assertive christian / Ruth Koch, Kenneth C. Haugk - St. Louis, Mo. : Stephen Ministries, c1989. - 198 p. ; 22 cm. ISBN: 0-963383116 Subjects--Topical Terms: Asertividad (psicología) - Aspectos religiosos - CristianismoVida cristiana Dewey Class. No.: 248.4 / K761