Baker, A.L.L.
Limits-state design of reinforced concrete
Cement and Concrete Association, 1970
 Buku Teks
Funderbank, Charles
Presidents and politics: the limits of power/ Charles Funderburk
Brooks/Cole Publishing, 1982
 Buku Teks
Thane, Pat
The Foundations of the welefare state / Pat Thane
Longman, 1982
 Buku Teks
Islam and the limits of the state: reconfigurations of practice, community and authority in contemporary Aceh
edited by R. Michael Feener, David Kloos, Annemarie Samuels
Brill, 2016
 eBooks
Cressey, George Babcock, 1896-1963
China's geographic foundations: a survey of the land and its people
McGraw-Hill, 1934
 Buku Teks SO