Selly, S. I. P., T. Alhim Mubarok, and A. Saifuddin. “The Implementation of Flash Cards to Teach Vocabulary for Four Grade Students at MI Ma’arif NU Nurul Islam Pronojiwo: English”. Journal of English Development, vol. 4, no. 01, Feb. 2024, pp. 221-37, doi:10.25217/jed.v4i01.4282.