Sewell, Anna
Holt, Rinehart and Winston, 1961
Buku Referensi
Sewell, Anna
Dell Publishing, 1963
Buku Teks
Markku Saastamoinen, editor
[, Wageningen Academic], 2012
eBooks
Astri Adhita Maharani Manik, author
Fakultas Hukum Universitas Indonesia, 2016
UI - Skripsi Membership
[publisher not identified], [date of publication not identified]
Naskah