1. Wood for sound;Wegst;Am J Bot,2006
2. National Geographic Indonesia. Kisah Sang Gitar: Getar Nada Gitar, Metamorfosis Indah Sepotong Kayu (the story of a guitar: the vibration of guitar strings, a beautifaul Metamorfosis of a piece of wood). Green Living Guide, National Geographic Indonesia; 2009 August. p. 84–9.
3. On musical instrument wood;Haines;Catgut Acoust Soc Newslett,1979
4. Study on Young’s modulus and internal friction of wood in relation to the evaluation of wood for musical instruments;Ono;Jpn J Appl Phys,1983
5. Material selection for musical instruments;Barlow;Proc Inst Acoust,1997