NILUH SULISTYANI; CYRENIA NOVELLA KRISNAMURTI; AGATA GALUH PUSPITA PUTRI. The concept understanding of students in Mappi concerning fractional operation in the matriculation program 2018/2019. Math Didactic: Jurnal Pendidikan Matematika, v. 6, n. 1, p. 39-49, 24 Apr 2020.