Nur Azkiyah, Wulan Sari, Dian Handayani, and Holipah -. 2016. “Validitas Estimasi Tinggi Badan Berdasarkan Tinggi Lutut Pada Lansia Di Kota Malang (Validity of Height Estimation Based on Knee Height in the Elderly in Malang)”. Indonesian Journal of Human Nutrition 3 (2). Malang, Indonesia:93-104. https://doi.org/10.21776/ub.ijhn.2016.003.02.5.