Columbia subject headings:
Harvard subject headings:
Sin, Tong-yŏp, 1930-1969--Criticism, Textual.
Sin, Tong-yŏp, 1930-1969. Sŏkkat'ap.
Princeton subject headings:
Librettos.
Operas--Korea (South)--Librettos.
Sin, Tong-yŏp, 1930-1969. Sŏkkat'ap--Criticism and interpretation.