Alivian, Galih, 		Alaludin, Sidik, AND 		Hidayat, Arif.
" Training Manajemen Nyeri Punggung (Low Back Pain) Pada Lansia Dengan Mc Kenzie Exercise  Di Kelurahan Mersi Purwokerto Timur" <em>Jurnal of Community Health Development</em> [Online], Volume 2 Number 1 (1 February 2021)