Sulistiono, Sulistiono, Bambang Suhardi, F Ishartomo, and I Nugraha. “A Preliminary Review of Multiscale Fret As Innovation of Ergonomic Guitar”. Journal of Technology and Operations Management 16, no. 1 (July 29, 2021): 81–90. Accessed September 24, 2026. https://e-journal.uum.edu.my/index.php/jtom/article/view/13811.