Purnama, T. B., Apriliani, A., Rani Elviyanti Siregar, Riyandina Hardja, B. A., & Insani, A. (2021). The risk factors of obesity among adolescents during the covid-19 pandemic in the province of north sumatera. Medicina Social Social Medicine, 15(3), 105–110. Retrieved from https://socialmedicine.info/index.php/medicinasocial/article/view/1473