Yudrik Jahja
Kencana Prenada Media, 2011
Buku Teks SO
Buku Teks
Hurlock, Elizabeth Bergner, 1898-
[publisher not identified], [date of publication not identified]
Buku Teks
Upton, Penney
Erlangga, 2012
Buku Teks SO
Sinolungan, A.E.
Toko Gunung Agung, 2001
Buku Teks