"Economie." . . "Volkswirtschaftslehre." . . . . . . . "Exercises in economic analysis : a textbook of objective questions for A-Level" . . "Exercises in economic analysis : a textbook of objective questions for A-level" . "Aufgabensammlung" . . . . . "Examinations" . "Exercices in economic analysis : a textbook of objective questions for A-level" . . . . . . . . "Economics." . . . .