Arthaningsih, N.K.J. and Diputra, K.S. 2019. Pengaruh Model Pembelajaran Kooperatif Tipe Two Stay Two Stray melalui Lesson Study terhadap Hasil Belajar Matematika. Journal of Education Technology. 2, 4 (Aug. 2019), 128–136. DOI:https://doi.org/10.23887/jet.v2i4.16424.