Sugandika, D. and Nahariani, P. 2016. PENGARUH SENAM ERGONOMIS TERHADAP GANGGUAN TIDUR (INSOMNIA) PADA LANSIA DI PANTI WERDHA MOJOPAHIT MOJOKERTO: Effect Of Gymnastics Ergonomic Sleep Disorders (Insomnia) Elderly In Elderly Elderly Mojopahit Mojokerto. Jurnal Ilmiah Keperawatan (Scientific Journal of Nursing). 2, 1 (Mar. 2016), 43-50.