The human freedom index a global meansurement of personal, civil and economic freedom Ian vasquez and tanja porcnik,
Introduction to Automata Theory, Languages, and Computation John E. Hopcroft, Rajeev Motwani, Jeffrey D. Ullman, Edisi : Edisi Kedua (2nd Edition)
ELEMENTS OF AUTOMATA THEORY Jacques Sakarovitch, Edisi : Pertama kali terbit dalam bahasa Inggris, 2009 Call Number : 006.42 Automata Theory JAC e