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APA Citation
Loewen, S., Crowther, D., Isbell, D. R., Kim, K. M., Maloney, J., Miller, Z. F., & Rawal, H. (2019). mobile-assisted language learning: A Duolingo case study. ReCALL, 31(3), 293–311. http://access.bl.uk/ark:/81055/vdc_100089555217.0x000025