Milner, Frederic
Macmillan, 1931
Buku Teks
Carlita Rozetta, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2012
UI - Skripsi (Open)
Dickens, Charles, 1812-1870, author
J.M. Dent & Sons, 1907
Buku Teks
by Andrew Schmitz, P. Lynn Kennedy, Troy G. Schmitz
Emerald, 2017
eBooks
Artikel Jurnal