Sucipto, Sucipto, Hobri Hobri, and Endang Wahyuningrum. 2022. “Penerapan Pembelajaran Matematika Model Creative Problem Solving Berbantuan Whatshapp Berbasis Lesson Study”. Jurnal Pendidikan Matematika Dan Sains 10 (1):62-69. https://doi.org/10.21831/jpms.v10i1.39510.