Riyanto, E. D., and A. S. Dewi. “Via Vallen Phenomenon: The Emergence of the Queen of Indonesian Dangdut Koplo”. Popular Entertainment Studies, vol. 11, no. 1-2, Feb. 2021, pp. 66-80, https://novaojs.newcastle.edu.au/kulumun/index.php/pes/article/view/232.