Murray, Les A.
Angus & Robertson, 1987
Buku Teks SO
Mcfall, Claire
PT Gramedia Pustaka Utama, 2022
Buku Teks SO
Eldershaw, M. Barnard.
Harcourt, Brace and company, 1929
Buku Teks SO
Astley, Thea
Angus and Robertson, 1960
Buku Teks SO
Mckie, Ronald
William Collins, 1974
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