Boy Subirosa Sabarguna
UI-Press, 2007
Buku Teks SO
Boy Subirosa Sabarguna
UI-Press, 2007
Buku Referensi
Goodwin, Paul
West Sussex : Wiley, 2010
Buku Teks
Thomas N. Ingram...[et al.]
Harcourt College Publishers, 2001
Buku Teks
Schroeder, Roger G.
McGraw-Hill, 1993
Buku Teks