HOBRI, H.; PUTRI, M. A. K.; MURTIKUSUMA, R. P.; OKTAVIANINGTYAS, E.; PAMBUDI, D. S. Developing Student Worksheet for Grade Seven on Social Arithmetics and Its Use in Flipped Classroom Blended Learning. Edumatica : Jurnal Pendidikan Matematika, [S. l.], v. 11, n. 01, p. 1-11, 2021. DOI: 10.22437/edumatica.v11i01.12032. Disponível em: https://online-journal.unja.ac.id/edumatica/article/view/12032. Acesso em: 20 sep. 2021.