RIZAL, Muh; NURHAYADI; RIFKA. LEARNING OBSTACLES MAHASISWA PROGRAM STUDI PENDIDIKAN MATEMATIKA PADA MATA KULIAH KALKULUS. HISTOGRAM: Jurnal Pendidikan Matematika, [S. l.], v. 8, n. 1, p. 149–159, 2024. DOI: 10.31100/histogram.v8i1.3564. Disponível em: https://journal.matappa.ac.id/index.php/histogram/article/view/3564. Acesso em: 15 jan. 2026.