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