Nahgiyah, Eva, and Stefanus C. Relmasira. 2019. “Upaya Peningkatan Keterampilan Berbicara Dan Hasil Belajar Melalui Model Pembelajaran Cooperative Learning Tipe Jigsaw”. Journal of Education Action Research 3 (3):201-8. https://doi.org/10.23887/jear.v3i3.17370.