Amara Raksasataya
Asia Society , 1974
Buku Teks
Gibson, E. Dana, author
South Western, 1957
Buku Teks
Hadari Nawawi, author
Erlangga, 1992
Buku Referensi
[Publisher not identified], [Date of publication not identified]
Buku Teks
Palgrave Macmillan, 2018
Buku Teks