Arcidiacono, Gabriele
Springer-Verlag, 2012
eBooks
Douglass, Laura Mae
Mosby, 1984
Buku Teks
Ikeda, Daisaku, 1928-
[Publisher not identified], [Date of publication not identified]
Buku Teks SO
Stevenson, Augusta
Bobbs-Merrill, 1959
Buku Teks
Gordon, Thomas
McGraw-Hill, 1977
Buku Teks