Nursalam, Nursalam, Retno Indarwati, and Mikhael Caraka Kristi. “Berg Balance Test (Bbt) and Time Up and Go Tes (Tugt) As Falls Prediction on Elderly”. Jurnal Ners 3, no. 2 (July 23, 2017): 170–175. Accessed August 15, 2024. https://e-journal.unair.ac.id/JNERS/article/view/5001.