Longman Effective Guide to Lower Secondary English : Based on the Latest MOE Syllabus Cheng, Audrey Pearson Longman, 2003 Bahasa Inggris
Lincoln Tentang Demokrasi / Mario M. Cuomo dan Harold Holzer Borrit, Gabor S. ; Gienapp, Wlliam E. ; Strozier, Charles B. ; Current Richard Nelson Pustaka Sinar Harapan, 1996 Ilmu Politik
