Arifani Maulida Rahman, Yulia Luthfiyani Azizah, and Abdul Hopid. “Use Of Websites And Social Media As Information Systems At Smp Muhammadiyah 9 Yogyakarta”. Linguanusa : Social Humanities, Education and Linguistic 1, no. 1 (April 30, 2023). Accessed December 19, 2024. http://linguanusa.com/index.php/1/article/view/7.