Gordon, Robert C., author
National Book Trust, India, 2007
Buku Teks
Bayu Kristianto, reviewer
VDM Verlag Dr. Muller, 2009
Buku Teks
Ge, Zhaoguang, 1950-, author
Boston Brill, 2014
Buku Teks
Whatmore, Richard, author
Polity, 2016
Buku Teks SO
Emerson, Ralph Waldo
Hougtion Mifflin Company, 1904
Buku Teks