[1] Peyman Nasehpour, Tombak (Zarb): A Brief History, http://www.rhythmweb.com/tonbak/ ( current March 2004 )

[2] Peyman Nasehpour, Structure of Tonbak , http://www.drumdojo.com/world/persia/tonbak_structure.htm ( current March 2004) 

[3] Amir Alan Vahab, Instruments, http://www.tanbour.org/gallery/instruments.htm (current March 2004)

[4] Matt Hannafin, Basic Strokes of  Tombak, http://www.donbak.co.uk/Articles/BasicStrokesofTombak.htm ( current March 2004 )

[5] Hossein Tehrani, Hoshang Zarif, Mostafa Kamalportorab and Farhad Fakhrodini, revised by Hosain Dehlavi., Tombak Rudiment, Published by: Moasseh Farhangi-Honary Mahour. ISBN 964-6409-19-9, 1996

[6] Bahman Rajabi, Tombak Training Vol. 1, Published by: Sorood Publishing, ISBN 964-5842-39-5, 2000