ISEAS, 1997
Buku Teks SO
editors Samuel C.Y. Ku, Kristina Kironska,
World Scientific Publishing Co. Pte. Ltd, 2017
Buku Teks
edited by Teddy Cruz and Anne Boddington
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Buku Teks SO
Halliday, Fred
Cambridge University Press, 2005
Buku Teks SO
Sarkar, H.B.
Indian Council for Cultural Relations and Motilal Banarsidass, 1985
Buku Teks SO