Li, Rong
Friendship
China Renmin University Press, 2015
 eBooks
Sollers, Philippe, 1936-
The friendship of Roland Barthes
Polity Press, 2017
 Buku Teks SO
Khrushchov, Nikita Sergetevich
Disarmament for durable peace and friendship
Foreign Languages, 1960
 Buku Teks SO
Lefton, Lester A.
Psychology
Allyn and bacon , 1997
 Buku Teks SO
Wortman, Camille B.
Psychology
McGraw-Hill, 1992
 Buku Teks SO