Shomali, Mohammad A., author
Serambi, 2001
Buku Teks
Augustynek, Zdzislaw, author
Kluwer Academic, 1989
Buku Teks
Ryder, Robert G.
Sage publications , 1987
Buku Teks
Iqraa Runi Aprilia, author
2017
UI - Skripsi (Membership)
Cahoone, Lawrence E., author
The Pennsylvania state university press, 2005
Buku Teks