Ima Hardiman, author
Gagas Ulung, 2006
Buku Referensi
Elfiandri, author
Rajawali Press, 2018
Buku Teks
Rosady Ruslan, author
RajaGrafindo Persada, 2005
Buku Teks
Rosady Ruslan, author
Ghalia Indonesia, 1995
Buku Teks
Broom, Glen M., author
Prentice - Hall , 2009
Buku Teks