Mohamed Yusoff Ismail, author
Institute of Southeast Asia Studies , 1993
Buku Teks
Yahaya Ismail
Kuala Lumpur Dinamika Lumpur Dinamika Kreatif 1977
Buku Teks
Soothill, W.E. (William Edward), author
Motilal Banarsidass Publishers Private Limites, 1937
Buku Referensi
New York : Vintage Book, 1969
Buku Teks
Ishak Shari, author
Kementerian Pendidikan Malaysia, 1988
Buku Teks