Sutton, R. Anderson, and Roger R. Vetter. "Flexing the Frame in Javanese Gamelan Music: Playfulness in a Performance of Ladrang Pangkur." Analytical Studies in World Music: Analytical Studies in World Music. : Oxford University Press, 2006-06-15. Oxford Scholarship Online. 2010-01-01. Date Accessed 19 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195177893.001.0001/acprof-9780195177893-chapter-8>.
Sutton, R., & Vetter, R.(2006-06-15). Flexing the Frame in Javanese Gamelan Music: Playfulness in a Performance of Ladrang Pangkur. In Analytical Studies in World Music: Analytical Studies in World Music. : Oxford University Press. Retrieved 19 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195177893.001.0001/acprof-9780195177893-chapter-8.
Sutton, R. Anderson, and Roger R. Vetter. "Flexing the Frame in Javanese Gamelan Music: Playfulness in a Performance of Ladrang Pangkur." In Analytical Studies in World Music: Analytical Studies in World Music. : Oxford University Press, 2006-06-15. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195177893.001.0001/acprof-9780195177893-chapter-8.
Sutton RA, Vetter RR. Flexing the Frame in Javanese Gamelan Music: Playfulness in a Performance of Ladrang Pangkur. In: Tenzer M. Analytical Studies in World Music: Analytical Studies in World Music. Oxford University Press; 2006. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195177893.001.0001/acprof-9780195177893-chapter-8. Accessed May 19, 2013.