IKHWANI SAUFA; HUSNI THAMRIN. Meningkatkan Kemampuan Berhitung Melalui Metode Jarimatika di Panti Asuhan Washliyah Lubuk Pakam. ABDISOSHUM: Jurnal Pengabdian Masyarakat Bidang Sosial dan Humaniora, [S. l.], v. 1, n. 1, p. 131–135, 2022. DOI: 10.55123/abdisoshum.v1i1.515. Disponível em: https://journal.literasisains.id/index.php/abdisoshum/article/view/515. Acesso em: 8 feb. 2026.