Tate, H. Clay, author
Harper & Brothers, 1954
Buku Teks
Clinard, Marshall B. (Marshall Barron), author
Tree Press, 1966
Buku Teks
Turner, Roger Newman
Thorsons, 1993
Buku Teks
general editors Michael Orme, Susanna Graham-Jones
Penguin Group, 1989
Buku Referensi
Ratu Rona Drati Selon, author
2018
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