Setiawan, S. and Idris, K. 2020. “We Need Supervisors”: Problematic Implementationof Curriculum 2013 among Mathematics Teachers. Numerical: Jurnal Matematika dan Pendidikan Matematika. 4, 1 (Jun. 2020), 55–65. DOI:https://doi.org/10.25217/numerical.v4i1.859.