Sejarah pos dan telekomunikasi di Indonesia, jilid I dan jilid II
Direktorat Jenderal Pos dan Telekomunikasi, 1980
 Buku Teks SO
Fox, Harold W.
The economics of trading stamps / Harold W. Fox.
Public Affairs Press, 1968
 Buku Teks SO
Postal service today : Republic of China
Chunghwa Post Co. Ltd,
 Majalah, Jurnal, Buletin
Lo, Kuan-Chung
Romance of the Three Kingdoms: Volume I
Berkeley Books, 2002
 Buku Teks SO
Wu, Ding min
Panoramic view of Chinese culture
Xin shi jie chu ban she, 2010
 Buku Teks