Bakosurtanal, Grasindo
Grasindo, Gramedia Widiasarana Indonesia, 2007
Buku Referensi
Klett, 2006
Buku Referensi
Land resources Departement NRI overseas development administration foreign communication wealth office U.K., 1990,
Buku Referensi
UI - Publikasi
contributors, Harry Widianto
Kharisma Ilmu, 2012
Buku Referensi