Malik, A.S. 2021. Pengembangan E-Modul Berbantuan Sigil Software Dan Analisis Kemampuan Berpikir Kritis Siswa. Pasundan Journal of Mathematics Education. 11, 1 (Jun. 2021), 18–35. DOI:https://doi.org/10.23969/pjme.v11i1.3731.