Pratama, A., Hadiyanto, E. Haryanto, and B. A. Wulandari. “The Effect of Gamification in Learning English for Non Language Majority Class at University Level: Solomon Study”. International Journal of Education and Teaching Zone, vol. 5, no. 1, Feb. 2026, pp. 93-108, doi:10.57092/ijetz.v5i1.623.