Teitelbaum, Joel Bern
Essentials of health policy and law
Jones Bartlett Learning, 2017
 Buku Teks
Language development: the essential readings
edited by Michael Tomasello and Elizabeth Bates
Blackwell , 2002
 Buku Teks SO
Phonological theory : the essential readings
edited by John A. Goldsmith
Blackwell , 1999
 Buku Teks SO
Technology and values: essential readings
Wiley-Blackwell, 2010
 Buku Teks SO
Archer, Margaret
Critical realism : essential readings
Routledge, 1998
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