Naresh Sharma, and Anindita Roy Chowdhury. “Scientific Numerical Pattern in Stringed-Fretted Musical Instrument”. Mathematical Journal of Interdisciplinary Sciences 8, no. 2 (March 30, 2020): 69-74. Accessed July 3, 2020. https://mjis.chitkara.edu.in/index.php/mjis/article/view/214.