Paddy Bowie
Ministry of Foreign Affairs, 2006
Buku Teks
Mohamad Kadim Bin Suaidi
Penerbit Universiti Teknikal Malaysia Melaka, 2009
Buku Teks SO
Mahathir bin Mohamad, 1925-
MPH Group , 2012
Buku Teks
E. YU
MPH Group Publishing Sdn Bhd, 2008
Buku Teks SO
Yu, E.
MPH Group Publishing Sdn Bhd, 2008
Buku Teks