SIJABAT, F.; RINCO SIREGAR; SRI DEARMAITA PURBA. Bermain Puzzle Dalam Meningkatkan Fungsi Kognitif Lansia. Jurnal Abdimas Mutiara, [S. l.], v. 4, n. 2, p. 56–59, 2023. Disponível em: https://e-journal.sari-mutiara.ac.id/index.php/JAM/article/view/4273. Acesso em: 13 feb. 2026.