Nasution, Dhini Jayanty, author
2018
UI - Tesis (Membership)
Masters, William H.
Harper Perennial 1994, 1994
Buku Teks
Mahoney, E.R., author
McGraw-Hill, 1983
Buku Teks
Artikel Jurnal
Amir Hasan Dawi, author
Penerbit Universiti Pendidikan Sultan Idris, 2007
Buku Teks