Saing, Johannes, Ridwan Daulay, Rafita Ramayati, and Rusdidjas Rusdidjas. “Comparison of Blood Pressure of Senior High School Students in the Inner and Outer City of Medan”. Paediatrica Indonesiana 47, no. 6 (September 24, 2016): 247-51. Accessed April 28, 2024. https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/424.