IMPLEMENTASI BAGAN KENDALI INDIVIDUAL MOVING RANGE DALAM EVALUASI PROSES PERKULIAHAN DI JURUSAN MATEMATIKA FMIPA UNIVERSITAS TANJUNGPURA. SNPPM [Internet]. 2018 Sep. 27 [cited 2026 May 23];1. Available from: https://www.journal.ubb.ac.id/index.php/snppm/article/view/496