B. A. Annur and J. Winarko, “ANALISA VARIASI MELODI DALAM KARYA MUSIK PRELUDE IN E MINOR (OP. 28 NO. 4) KARYA FREDERIC FRANCOIS CHOPIN ARANSEMEN TRIO ZINGARA”, GETER, vol. 4, no. 1, pp. 59–77, Apr. 2021.