Jay, Douglas, author
Faber & Faber, 1946
Buku Teks
Michelagnoli, Giovanni, author
[Springer, Springer], 2012
eBooks
Artikel Jurnal
Soeharsono Sagir, author
Kencana Prenada Media Group, 2009
Buku Teks
Sugioka, Michio, author
Michio Sugioka, 1984
Buku Teks