THE EFFECTIVENESS OF FLASH CARDS AT TEACHING MEDIA ON VOCABULARY BUILDING AT SMKS KESEHATAN KELUARGA BUNDA JAMBI IN THE 2019/2020 ACADEMIC YEAR. (2020). EXPOSURE : JURNAL PENDIDIKAN BAHASA INGGRIS, 9(2), 187-194. https://doi.org/10.26618/exposure.v9i2.3981