Permani, K. I., Yulia, M. F., & Rahayu, D. (2024). Using Flash Cards to Improve the Vocabulary Mastery of XI Graders at SMA N 1 Ngaglik. SAGA: Journal of English Language Teaching and Applied Linguistics, 5(1), 69–80. https://doi.org/10.21460/saga.2024.51.184