Argyris, Chris, author
Jossey-Bass Publishers, 1987
Buku Teks
Lawrence, Paul R.
Dorsey Press, 1961
Buku Teks
Journal of Dentistry Indonesia, 2005
Artikel Jurnal
Fifi Mifta Huda, author
2017
UI - Tugas Akhir
Kneen, W.R., author
The English Language Book Society, 1974
Buku Teks