“ANALISIS KESULITAN BELAJAR MAHASISWA DALAM MENGERJAKAN  PADA MATERI KALKULUS VEKTOR”, JICN, vol. 2, no. 3, pp. 1934–1938, Jun. 2025, Accessed: Jul. 23, 2026. [Online]. Available: https://jicnusantara.com/index.php/jicn/article/view/4000