This document lists two German language textbooks published in the 2000s. It provides bibliographic information for Funk et al.'s 2005 textbook titled "Studio d a1" and Müller et al.'s 2004 workbook called "Optimal A1. Arbeitsbuch". Both books were published in Berlin by different publishers for use in learning German as a foreign language at the A1 level.
This document lists two German language textbooks published in the 2000s. It provides bibliographic information for Funk et al.'s 2005 textbook titled "Studio d a1" and Müller et al.'s 2004 workbook called "Optimal A1. Arbeitsbuch". Both books were published in Berlin by different publishers for use in learning German as a foreign language at the A1 level.