Coba jelasin Pustaka dari Néptunium dalam bahasa bali dong

Guide to the Elements – Revised Edition, Albert Stwertka, (Oxford University Press; 1998)

Lester R. Morss, Norman M. Edelstein, Jean Fuger (Hrsg.): The Chemistry of the Actinide and Transactinide Elements, Springer-Verlag, Dordrecht 2006, .

Eric Scerri, A Very Short Introduction to the Periodic Table, Oxford University Press, Oxford, 2011, .