Rista, R., Yolanda, F., Andrian, D. ., & Sthephani, A. (2022). Development of Mathematics Learning Tools With Cooperative Learning Model Type Two Stay Two Stray (TSTS) in the Material of Building a Flat Side Room in Class VIII SMP: Cooperative Learning Model Type Two Stay Two Stray (TSTS) in the Material of Building a Flat Side Room in Class VIII SMP. Perspektif Pendidikan Dan Keguruan, 13(2), 52–60. https://doi.org/10.25299/perspektif.2022.vol13(2).10185