Shaffira Diraprana Gayatri, author
2014
UI - Skripsi (Membership)
Keller, Helen Rex, author
McMillan Company, 1959
Buku Referensi
Campbell, Oscar James, author
Crofts, 1947
Buku Teks
Tucker, Caroline, author
Ariel & Books, 1962
Buku Teks
Shaw, J. C., author
D.K. Today, 1988
Buku Teks