Andayani, Ari, Ni Made Gita Saraswati, Ni Made Ari Suryathi, and Ni Kompyang Rahayu. “The Consistency of Visual Acuity Measurement Using PEEK Acuity and Snellen-E Performed by Trained Teachers in Elementary School Students”. Indonesia Journal of Biomedical Science 15, no. 2 (December 7, 2021): 145–148. Accessed August 12, 2022. https://ijbs-udayana.org/index.php/ijbs/article/view/325.