Judul asli : "The Geography of genius: a search for the world's most creative places from ancient Athens to Silicon Valley" Bibliografi : hlm. 472-478
No Inv.: 127667-127671/P/Perp/10/5c
Judul asli : "Economic Development in the Third World"
Judul asli : "Ethics : A Brief Introduction"
Judul asli : "Scientific Knowledge and Philosophic Thought"
No Inv.: 592-594/79/Perp/3c~141/79/Perp/1c
No Inv.: 70778/Perp/70/1c~50960/Perp/70/1c~50937/Perp/70/1c~50957/Perp/70/1c~50911/Perp/70/1c