Youngsun, K., S. Sosrohadi, C. Andini, S. Jung, K. Yookyung, and P. Kyeong Jae. “Cultivating Gratitude: Essential Korean Thankfulness Phrases for Indonesian Learners”. ELS Journal on Interdisciplinary Studies in Humanities, vol. 7, no. 2, June 2024, pp. 248-53, doi:10.34050/elsjish.v7i2.34881.