K. S. Rahayu, P. P. Utami, and I. Ridwan, “The Implementation of Gamification Using Wordwall for Speaking Practice at A Junior High School in Karawang”, JES, vol. 9, no. 6, pp. 4991–5001, Nov. 2025, doi: 10.31258/jes.9.6.p.4991-5001.