Administrator, STEMToolkit. "Guitar fretboard spacing and design". OER Commons. Institute for the Study of Knowledge Management in Education, 14 Jun. 2021. Web. 28 May 2023. <https://www.oercommons.org/authoring/61487-guitar-fretboard-spacing-and-design>.
Administrator, S. (2021, June 14). Guitar fretboard spacing and design. OER Commons. Retrieved May 28, 2023, from https://www.oercommons.org/authoring/61487-guitar-fretboard-spacing-and-design.