Yusuf Mansur Ustaz Kun fayakuun : selalu ada harapan di tengah kesulitan / Ustaz Yusuf Mansur ; editor, Luthfi Yansyah el-Sanusy. - Jakarta : Lini Zikrul Media Intelektual, 2007 - x, 261 p. ; 24 cm. - Seri Refleksi. . ISBN: 9789792622591 (hbk.) Subjects--Topical Terms: Self-actualization (Psychology).Motivation (Psychology).Motivation (Psychology) --Religious aspects --Islam. Dewey Class. No.: 297