[publisher not identified], [date of publication not identified]
Naskah
[publisher not identified], [date of publication not identified]
Naskah
Brandes, J.L.A., 1857-1905
Albrecht, 1911
Buku Teks SO
M. Sanggupri Bochari
Departemen Pendidikan Nasional , 2001
Buku Teks SO
Artikel Jurnal