What are the Different Kinds of Tubas? - Yamaha Music
Brasswind Band Instruments - Trumpet, Trombone, Tuba | Andy's Music
Amazon.com: Brass Instrument Manual: How to buy, maintain and set up your trumpet, trombone, tuba, horn and cornet: 9780857332172: Croft, Simon, Taylor, Andy: Books
University of the Arts Helsinki Bachelor of Music in Classical Music Performance: Brass Instruments (French Horn,