Gw mau tau Karya dari Musik Tradhisional. Jelasin dalam bahasa jawa

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Bronson, Bertrand Harris. The Singing Tradition of Child's Popular Ballads (Princeton: Princeton University Press, 1976).

Poladian, Sirvart. "Melodic Contour in Traditional Music," Journal of the International Folk Music Council III (1951), 30-34.

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Rooksby, Rikky, Dr Vic Gammon et al. The Folk Handbook. (2007). Backbeat