[publisher not identified], [date of publication not identified]
Naskah
R. Soetomo, author
Departemen Pendidikan dan Kebudayaan RI, 1980
Buku Teks
Tanner, Tony, author
Profile Books, 1981
Buku Teks
Mas Natawisastra, author
Jakarta, 1979
Buku Teks
[publisher not identified], [date of publication not identified]
Naskah