Davison, Frank Dalby, 1983-1970
Road to yesterday
Angus and Robertson, 1970
 Buku Teks SO
City Visions
Longman, 2000
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Hughes, Robert
American Visions
Alfred A. Knopf, 1997
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Williams, Edward Thomas
China : yesterday and to-day
George G. Harrap, 1923
 Buku Teks SO
Ahuja, B. N.
Communications yesterday, today and tomorrow
Surjeet Publications, 1989
 Buku Teks SO