M. Sabir
Pustaka sinar Harapan, 1992
Buku Teks
Gill, Ranjit
Gramedia, 1988
Buku Teks
compiled by K.S. Sandhu, Sharon Siddique, Chandran Jeshurun, Ananda Rajah, Joseph L.H.
Institute of Southeast Asian Studies, 1992
Buku Referensi
C.P.F Luhulima ... [et al.]
Sekretariat Nasional ASEAN, 1994
Buku Teks
edited by Alson Broinowski
Macmillan, 1982
Buku Teks