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APA Citation
SUN, H., YUSSOF, N., VIJAYAKUMAR, P., LAI, G., O'BRIEN, B. A., & ONG, Q. H. (2020). teacher's code-switching and bilingual children's heritage language learning and cognitive switching flexibility. Journal of child language, 47(2), 309–336. http://access.bl.uk/ark:/81055/vdc_100099962873.0x00003d