Stewart, Rosemary
Pan Books, 1967
Buku Teks
Youngsun CHO
Elex Media Komputindo, 2019
Buku Teks
edited by Camara, Antonio S.; Praper, Jonathan(ed.) (change)
Routledge, 1999
Buku Teks
Ferkiss, Victor C.
Braziller, 1969
Buku Teks
Cochrane, Willard W.
University of Minnesota Press, 1964
Buku Teks