ruri, ruri supatmi, purna wiratno purna, and Fajrianor. “Learning Medium Promoting English Productive Skills through Instagram in Universitas Nahdlatul Ulama Lampung: English”. Journal of English Development 4, no. 01 (August 8, 2023): 15–21. Accessed July 6, 2025. https://journal.iaimnumetrolampung.ac.id/index.php/jed/article/view/3124.