Susan Kelley. "Bass Clarinet Basics" (به انگلیسی). The United States Army Field Band, Washington, DC. Archived from the original on 14 June 2011. Retrieved 15 May 2011.
Susan Kelley. "Bass Clarinet Basics" (به انگلیسی). The United States Army Field Band, Washington, DC. Archived from the original on 14 June 2011. Retrieved 15 May 2011.