Chairil, - and Hardiana, - 1930. GAMBARAN PERILAKU PERSONAL HYGIENE PADA LANSIA DI UPT PSTW KHUSNUL KHOTIMAH PEKANBARU. Photon: Jurnal Sain dan Kesehatan. 8, 01 (Oct. 1930), 29-36. DOI:https://doi.org/10.37859/jp.v8i01.524.