[publisher not identified], [date of publication not identified]
Naskah
[publisher not identified], [date of publication not identified]
Naskah
Mellema, Toewan R.L., author
De Bliksem, 1929
Buku Klasik
Indra Syamsi, author
Kompas Media Nusantara, 2012
Buku Teks
Dwi Woro Retno Mastuti, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2007
UI - Laporan Penelitian