Jabarkan Analisis dari Nocturnes, Op. 9 (Chopin) dalam bahasa melayu

John Rink "Structural momentum and closure in Chopin's Nocturne Op 9 No 2" dalam Schenker Studies 2 (ed. Carl Schachter, Hedi Siegel) pp102–127 Cambridge University Press, 2006 , .

Jean-Jacques Eigeldinger "Nocturne op. 9/2, E flat major" dalam Chopin: pianist and teacher as seen by his pupils (ed. Jean-Jacques Eigeldinger, Roy Howat) pp77–79 Cambridge University Press, 1989 , .

Eleanor Bailie "Nocturne No. 2 in E flat major" dalam Chopin: a graded practical guide (Eleanor Bailie, Issue 3 of The pianist's repertoire) pp303–306 Kahn & Averill, 1998 , .