Carpio, Rustica C.
Yayasan Obor Indonesia, 2005
Buku Teks SO
St. Tri Guntur Narwaya
Resist Book, 2006
Buku Teks SO
Morissan, M.A.
Ghalia Indonesia, 2010
Buku Teks SO
Baran, Stanley J.
Wadsworth and Cengage Learning, 2012
Buku Teks SO
Thomas, TG
McGra-Hill, 2006
Buku Teks SO