Africa yesterday and today / edited by Clark D. Moore and Ann Dunbar
Bantam Books, 1968
Buku Teks SO
Ahuja, B. N.
Communications yesterday, today and tomorrow
Surjeet Publications, 1989
Buku Teks SO
Kampung boy: yesterday & today
Berita Publishing Sdn Bhd, 1993
Buku Referensi
Africa today
edited by C. Grove Haines
John Hopkins Press, 1956
Buku Teks SO
Arnstein, Walter L.
Britain yesterday and today : 1830 to the present
Head, 1983
Buku Teks SO