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Fujita, Hiroki, Kenji Sano, Katsunari Takeuchi, Toyoko Kikutani, Mako Azuma, et Tadashi Tanaka. "Eye Closed Learning Time By Japanese During an English Examination." Heliyon 2020.

Fujita, Hiroki, et al. "Eye Closed Learning Time By Japanese During an English Examination." Heliyon 2020.