Jones, Gareth R., author
South-Western Cengage Learning, 2013
Buku Teks
edited by Ron Sanchez, Aimw Heene, Seckin Polat, Umut Asan
Emerald, 2017
eBooks
Starling, Grover, author
Dorsey Press, 1979
Buku Teks
Mulyadi, author
Salemba Empat, 2007
Buku Teks
Smith, Kevin, author
Westview Press, Boston, Massachusetts : Credo Reference, 2013
Buku Teks