Marleni, L., & Asilestari, P. (2019). Developing Social Media-Based Textbook for Speaking Class in English Study Program: Pengembangan Buku Ajar Berbasis Media Sosial untuk Kelas Berbicara di Program Studi Bahasa Inggris. JEES (Journal of English Educators Society), 4(1), 31–38. https://doi.org/10.21070/jees.v4i1.1764