AJNA The book of immortality by Anja Jaenicke Paperback, 70 Pages, Published 2015 by Createspace Independent Publishing Platform ISBN-13: 978-1-5088-8417-0, ISBN: 1-5088-8417-X
Betriebliches Personalwesen (German Edition) by Erich Potthoff Hardcover, 208 Pages, Published 1974 by Walter De Gruyter ISBN-13: 978-3-11-003891-0, ISBN: 3-11-003891-9
Das Polit-Verbrechen Hartz IV(1st Edition) (German Edition) by R. D. Potthoff Paperback, 218 Pages, Published 2013 by Books On Demand ISBN-13: 978-3-8482-3720-3, ISBN: 3-8482-3720-2
Luxus Konsumentenanalyse und Managementempfehlungen (German Edition) by Anja Drissen Paperback, 196 Pages, Published 2012 by Av Akademikerverlag ISBN-13: 978-3-639-39303-3, ISBN: 3-639-39303-1