1. ACTFL. (2012).ACTFL Proficiency Guidelines. Retrieved fromhttps://www.actfl.org/publications/guidelines-and-manuals/actfl-proficiency-guidelines-2012
2. ACTFL. (2017).NCSSFL-ACTFL Can-Do Statements. Retrieved fromhttps://www.actfl.org/publications/guidelines-and-manuals/ncssfl-actfl-can-do-statements
3. Bowersox J. &Kopp K.(2015).Black Germany: The cultural history of Africans and people of African descent in the German-speaking lands from antiquity to the present. Retrieved fromhttps://networks.h-net.org/system/files/contributed-files/bowersox-kopp-syllabus.pdf