Kertamukti, Rama, Heru Nugroho, and S. Bayu Wahyono. “Digital Life Middle-Class on Instagram: Like, Share and Comment”. KnE Social Sciences 3, no. 20 (August 4, 2019): 310–322. Accessed April 8, 2020. https://knepublishing.com/index.php/KnE-Social/article/view/4944.