Sidabutar, G.S. and Dharsana, I.K. 2018. Pengaruh Model Pembelajaran Kooperatif Tipe Two Stay Two Stray melalui Lesson Study terhadap Hasil Belajar IPA. MIMBAR PGSD Undiksha. 6, 2 (Oct. 2018). DOI:https://doi.org/10.23887/jjpgsd.v6i2.19463.