NASUTION, J. D. PENGARUH SENAM LANSIA TERHADAP PENURUNAN TINGKAT NYERI PUNGGUNG BAWAH PADA LANSIA DI PUSKESMAS HELVETIA MEDAN. Jurnal Ilmiah PANNMED (Pharmacist, Analyst, Nurse, Nutrition, Midwivery, Environment, Dentist), [S. l.], v. 10, n. 3, p. 5–9, 2018. DOI: 10.36911/pannmed.v10i3.111. Disponível em: https://ojs.poltekkes-medan.ac.id/pannmed/article/view/111. Acesso em: 5 nov. 2025.