Stoessinger, John G.
Why nations go to war
Thomson Wadsworth, 2008
 Buku Teks
Stoessinger, John G.
Why nations go to war
Wadsworth and Cengage Learning, 2011
 Buku Teks
Buckley, Shawn
Sun up to sun down
McGraw-Hill, 1979
 Buku Teks
Haneberg, Lisa
Coaching up and down the generations
American Society for Training & Development, 2010
 eBooks
Blyton, Enid
Lima sekawan: dalam lorong pencoleng = Five go down to the sea
Gramedia Pustaka Utama, 2018
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