M. Sabir
Pustaka sinar Harapan, 1992
Buku Teks
Gill, Ranjit
Gramedia, 1988
Buku Teks
Asean Secretariat, 1997
Multimedia
compiled by K.S. Sandhu, Sharon Siddique, Chandran Jeshurun, Ananda Rajah, Joseph L.H.
Institute of Southeast Asian Studies, 1992
Buku Referensi
Kementerian Luar Negeri Malaysia
Ministry of Foreign Affairs Malaysia, 1977
Buku Teks SO