Sadhana, Senyum. 2022. “Orkes Keroncong (OK) Mutiara Ross in Surabaya (History, Musical Forms, and Inheritance)”. Virtuoso: Jurnal Pengkajian Dan Penciptaan Musik 4 (2):148-56. https://doi.org/10.26740/vt.v4n2.p148-156.