1.
Sani Susanti, Andriani Helda Manalu, Novianti Pakpahan, Sarah Anjelina Pinem, Yoca Vibertina Br Pinem. Analisis Tingkat Konsentrasi Belajar Siswa Akibat Penggunaan Gadget Di SMA Methodist 7 Medan, Jl. Madong Lubis No. 7 Medan. JIIC [Internet]. 2025 Jun. 9 [cited 2026 Oct. 27];2(6):11658-65. Available from: https://jicnusantara.com/index.php/jiic/article/view/3802