Wahyuni AS, Siahaan FB, Arfa M, Alona I, Nerdy N. The Relationship between the Duration of Playing Gadget and Mental Emotional State of Elementary School Students. Open Access Maced J Med Sci [Internet]. 2019 Jan. 13 [cited 2024 Apr. 29];7(1):148-51. Available from: https://oamjms.eu/index.php/mjms/article/view/oamjms.2019.037