Sulthoni, Muhammad Hanani Rusydi, and Niko Fediyanto. 2024. “ Improving Vocabulary Skills With Big Book Media in Elementary Students: Meningkatkan Keterampilan Kosakata Dengan Media Big Book Pada Siswa SD”. Indonesian Journal of Education Methods Development 19 (1). https://doi.org/10.21070/ijemd.v19i1.843.