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Voigt, R. Issayas Tesfamariam, ትግርኛ ንዛረብ: Let’s Speak Tigrinya, Elementary Level, A First-Year Textbook, A Multidimensional Approach to the Teaching and Learning of Tigrinya As a Foreign Language. Aethiopica 2020, 23, 308–314. https://doi.org/10.15460/aethiopica.23.0.1638.