Dabrowski, Adam, and Ayako Yokogawa. “A Comparison of Flow State Markers Experienced across AR, Game-Based, and Analog Deliberate Vocabulary Study Activities”. Vocabulary Learning and Instruction 14, no. 1 (March 3, 2025): 2161. Accessed September 25, 2026. https://www.castledown.com/journals/vli/article/view/vli.v14n1.2161.