Rohmatullah, Mohamad. “Musical Composition of Introverts Dan Ekstroverts’ Extramusical Idea”. Journal of Music Science, Technology, and Industry 3, no. 2 (October 21, 2020): 125–133. Accessed April 26, 2024. https://jurnal.isi-dps.ac.id/index.php/jomsti/article/view/1152.