Istiqomi Saidah Hanun, Muskhab Eko Riyadi, Eka Oktavianto. Hubungan durasi dan jarak penggunaan gadget dengan ketajaman mata pada siswa kelas X dan XI konsentrasi keahlian teknik audio video SMK Muhammadiyah 3 Yogyakarta.: The relationship between the duration and distance of gadget use with eye acuity in 10th and 11th grade students of SMK Muhammadiyah 3 Yogyakarta. Cendekia Sehat J. Penelit. Keperawatan [Internet]. 2024 May 31 [cited 2026 Aug. 15];1:07-14. Available from: https://journal.ycsn.org/index.php/csjpk/article/view/15