Bumrungsaree, S., and N. Sukpramarn. “Needs Analysis of Thai Korean Language Learners on Commercially Available Physical Flashcards: Implications for Instructional Media Development”. Journal for Developing the Social and Community, vol. 13, no. 2, June 2026, pp. 323-42, https://so03.tci-thaijo.org/index.php/rdirmu/article/view/301796.