Rustrini, Nyoman Putri, I Ketut Resika Arthana, and Gede Saindra Santyadiputra. “RETRACTED: A DESCRIPTIVE SURVEY ON SMARTPHONES FEATURES FOR SUPPORTING THE ACADEMIC ACTIVITIES AT UNIVERSITAS PENDIDIKAN GANESHA”. Jurnal Pendidikan Teknologi dan Kejuruan 23, no. 2 (October 1, 2016): 200–209. Accessed May 15, 2025. https://jurnal.uny.ac.id/index.php/jptk/article/view/13188.