Hall, Unity
Headline, 1992
Buku Teks
Miller, Madeline, author
PT Gramedia Pustaka Utama, 2022
Buku Teks
Scott, J. D.
Eyre and Spottiswoode, 1954
Buku Teks
Hall, Rodney, author
University of Queensland, 1972
Buku Teks
Ling Mengchu, compiler; Yang Xianyi, Yang Gladys, Nadya Andwiani, translator
Elex media komputindo, 2011
Buku Teks