Octavia V, Soepriatmadji L. FLASH CARDS’ CONTRIBUTION IN INTRODUCING ENGLISH VOCABULARY TO THE FIRST GRADERS OF SDN BRUMBUNGAN SEMARANG AND THEIR RESPONSES: A CLASSROOM ACTION RESEARCH. bb [Internet]. 31Jul.2020 [cited 23Jul.2024];15(2):79-4. Available from: https://www.unisbank.ac.id/ojs/index.php/fbib1/article/view/8224