Renshaw, Wallace W.
Gregg Publishing, 1937
Buku Teks
Diehl, Marcy Otis
Elsevier Saunders, 2012
Buku Teks
Herman W. Widjaja
Dinastindo, 1990
Buku Teks SO
Meredith, Geoffrey G.
PPM, 2002
Buku Teks
Onong Uchjana Effendy
[publisher not identified], [date of publication not identified]
Buku Teks