Rahmawati, Wiki Tedi, and Yunita Mutiara Harahap. “Spelling Bee Games to Increase Students’ Vocabulary Mastery at the Islamic-Affiliated Middle Schools: An Action Research”. Journal of Languages and Language Teaching, vol. 11, no. 1, Jan. 2023, pp. 61-71, doi:10.33394/jollt.v11i1.6758.