All articles accepted for publication in Jurnal Riset Mahasiswa Matematika (JRMM) are subject to an Article Processing Charge (APC). Manuscripts submitted before June 2025 will incur no fee (Rp 0,-). However, submissions received from June 2025 onwards will be charged an APC of Rp 200.000,-. This policy may change based on future decisions and operational considerations by JRMM.