Liza Arisna Rahman. Peran Tutor dalam Mengatasi Kesulitan Belajar Matematika Peserta Didik Program Paket A di PKBM Cerdas Mandiri. API [Internet]. 2025 Jun. 30 [cited 2026 Apr. 28];4(1):24-8. Available from: https://journal.ypmma.org/index.php/api/article/view/340